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Lavender oils found in soaps, shampoo and laundry detergent can cause abnormal breast development in boys and girls from the age of three, according to a new study.
Previous research has linked abnormal breast growth in young boys to these essential oils, but the latest study is the first to examine the link in girls.
He found that those with premature thelarche – when breasts develop prematurely in girls before the age of eight without any other sign of puberty – have seen their symptoms disappear after stopping lavender oil products.
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The essential oil of lavender, the most popular essential oil in men and women in the United States, is known for its soothing qualities.
The girls studied were exposed to the lavender fragrance, bath soap and sticks scented with the professor's lavender oil.
1/50 August 17, 2019
Glew (center) and Monroe Adams (right) pose for a selfie with a member of the public outside of DragWorld London 2019, the largest drag convention in Europe, featuring drag stars from the United States and Canada. United Kingdom at a two-day event in Olympia, London.
Pennsylvania
2/50 August 16, 2019
A gray seal with a fishing net entangled around his neck at the Horsey Beach colony in Norfolk, according to RSPCA data, which indicate that the number of animals affected by plastic waste is at his highest level, with an increase of 22% in just four. years
Pennsylvania
3/50 August 15, 2019
A group of sheep are gathered in front of government buildings in London by members of the Farmers for a People's Vote campaign group.
Pennsylvania
4/50 August 14, 2019
Swedish climate activist Greta Thunberg speaks at a press conference in the Mayflower Marina in Plymouth, South West England, on August 14, 2019, prior to her trip to the city. 39 Atlantic in New York, aboard the Malizia II IMOCA class sailboat, where she will attend the UN Summit on Climate Action next month. – A year after her school strike has allowed her to become a figurehead for climate activists, Greta Thunberg thinks her uncompromising message about global warming is going on – even though action remains slim on the ground. The 16-year-old Swede, who travels to New York this week to get her message across to the US, has been targeted for abuse, but sees it as evidence of its effects.
AFP / Getty Images
5/50 August 12, 2019
A hare runs on a moor near Ripon, North Yorkshire.
Pennsylvania
6/50 August 11, 2019
Britain's Jamie Chadwick wins his first-ever W Series title. She pocketed a £ 410,000 prize and, after signing as a development driver for Williams, she maintains her hopes of succeeding in Formula One.
Getty
7/50 August 10, 2019
People gather on the beach like a raft carrying people disguised as clowns heading for the coast at the annual Whitby Regatta in Whitby, England. At over 170 years old, the Whitby Regatta is considered the oldest maritime regatta on the northeastern coast of England and attracts thousands of visitors each year.
Getty
8/50 August 9, 2019
Mary Hamblin, 82, Burryman Andrew Taylor, takes a whiskey tong with a straw, while it scrolls through the town of South Queensferry, near Edinburgh, locked in burrs. The parade takes place on the second Friday of the month of August each year and, although the exact meaning of this tradition has been lost over the years, it is thought that it began in the 17th century. It is believed that tradition brings good luck to townspeople when they give him whiskey offered in the form of straw or a gift of money.
Pennsylvania
9/50 August 8, 2019
A mosque is seen among the residential units from the air during a mass take-off at the annual Bristol Balloon Festival in Bristol.
Reuters
10/50 August 7, 2019
An Asian lioness eats meat at meals before World Lion Day at London Zoo.
Reuters
11/50 August 6, 2019
Beer lovers will sample beer and beer at the Great British Beer Festival in Kensington Olympia, in West London. The Great British Beer Festival, organized by CAMRA, brings together under one roof hundreds of real ales, international beers and real ciders.
AFP / Getty Images
12/50 August 5, 2019
Australia's Nathan Lyon became famous after taking the box office of Englishman Joe Root on the fifth day of the first Ashes test at Edgbaston. The hosts were about to hurt themselves, while Australia won the first test by 251 points.
Getty
13/50 August 4, 2019
Franky Zapata rides on his jet flyboard before landing at St. Margaret's Bay, Dover, as he tries to cross the 35-kilometer (22-mile) channel crossing. ). The Frenchman reached his goal today, on his second attempt, after spending years developing the jet hoverboard.
AFP / Getty
14/50 August 3, 2019
A cricket fan carries a Donald Trump inflatable boat on the third day of the first cricket match with Ashes between England and Australia at Edgbaston in Birmingham.
AP
15/50 August 2, 2019
An RAF Chinook helicopter is flying in sandbags to help repair the Toddbrook Reservoir Dam, which has been damaged by heavy rains.
Pennsylvania
16/50 August 1, 2019
Stuart Broad celebrates after taking David Warner's wicket on the first day of the first Ashes test between England and Australia at Edgbaston. English fans celebrated the loss of the dismissals of David Warner and Cameron Bancroft by waving sandpaper after facing a ban on playing their part in the Sandpaper scandal last year. Australia was eliminated for 284 points after Steve Smith frustrated the hosts with a total of 144. He helped his team go from 122 to 8.
Getty
17/50 July 31, 2019
A bridge collapsed near Grinton, North Yorkshire, after part of the area received up to 82.2 mm of rain in 24 hours Tuesday.
Pennsylvania
18/50 July 30, 2019
Acrobats Beren of Amico, Louis Gift and Charlie Wheeller of the Barely Methodical Troupe perform a routine at Calton Hill, Edinburgh, as they present their first show, Bromance, at Edinburgh Fringe.
Pennsylvania
19/50 July 29, 2019
Theresa, robotic waitress at the Cobham branch of The Tea Terrace in Surrey. Theresa represents the 6th generation of robotic waitresses launched in Japan a few years ago. The robot comes with a standalone navigation; automatic obstacle avoidance, voice conversation and automatic delivery of dishes. It integrates basic technologies into automatic control, multi-sensor perceptual collision avoidance and route planning.
Pennsylvania
20/50 July 28, 2019
Competitors at the World Endangered Nettle Consumer Championship at The Bottle Inn in Marshwood. Competitors are served with long stalks of nettles that rip them off and eat as many leaves as possible.
Getty
21/50 July 27, 2019
A woman in the character of The Muerte from The Book of Life, at the MCM Manchester Comic Con, which sees thousands of sci-fi fans, gamers, comic book collectors, moviegoers and hobbyists cartoons visit Manchester Central
Pennsylvania
22/50 July 26, 2019
The Englishman Jonny Bairstow seizes the dismissal of the Irishman William Porterfield during his test march at Lord & # 39; s. Ireland has tilted 38 times in its second run in just 15.4 assists – the second lowest total in the history of Test matches
Action Images via Reuters
23/50 July 25, 2019
Hamza and Haris are springing up in the water near the National Football Museum in central Manchester, as the UK prepares to face the hottest July day ever recorded.
Pennsylvania
24/50 July 24, 2019
Boris Johnson signals that he will enter 10 Downing Street after being appointed prime minister by the Queen. The former mayor and foreign secretary of London won his bid for leadership of the party by beating Jeremy Hunt's Tory race the day before. Theresa May resigned following her resignation from the Conservative Party on June 7
EPA
25/50 July 23, 2019
Swimmers enjoy themselves in the sea on a giant inflatable Flamingo, South Beach, Tenby, Pembrokeshire
Reuters
26/50 July 22, 2019
The new liberal Democratic leader, Jo Swinson, addresses the audience on the stage after being named to Sir Vince Cable's successor. Swinson defeated his compatriot Ed Davey by 47,997 votes against 28,021 votes
Getty
27/50 July 21, 2019
Adam Peaty broke his own world record in the men's 100-meter breaststroke at the World Championships in Gwangju, South Korea. The 24-year-old beat the previous record of 57.10 seconds that he had set at the European Championships last year to impose in 56.88. In doing so, the UK has achieved one of its career goals: to become the first man to break the 57-second mark in the competition.
Reuters
28/50 July 20, 2019
People's Moon by London artist Helen Marshall, a giant photographic mosaic presented at the exact time 50 years ago that Apollo 11 landed for the first time on Moon, at Piccadilly Circus, London
Pennsylvania
29/50 July 19, 2019
Players from Uganda and Malawi during their Netball World Cup match at M & S Bank Arena, Liverpool
Pennsylvania
30/50 July 18, 2019
Artist Steve Messam poses next to his monumental landscape work "Hush," hanging in the Teesdale Barrens on July 18, 2019 in Barnard Castle, England. The outdoor installation is inspired by the geology, mining history and landscape of the area. The North Pennines AONB partnership commissioned the facility located above Bales Hush, a deep gauge in the ground created when miners rinsed the area with water to reveal the geological riches beneath. Hundreds of meters of recyclable yellow saffron fabric blow in the wind.
Getty
31/50 July 17, 2019
The staff at Buckingham Palace organizes the dining table, a copy of the dessert table of Queen Victoria's reign, as part of an exhibition at Buckingham Palace in London. The exhibition marks the 200th anniversary of the birth of Queen Victoria
AP
32/50 July 16, 2019
Inveraray's bagpipe troupe parades through the city at the start of the Highland Games in Inverarary, Scotland.
Getty
33/50 July 15, 2019
Extinguishment Rebellion activists block roads near Tron Clock Tower in Glasgow
Getty
34/50 July 14, 2019
Serbia's Novak Djokovic wins the winner's trophy after defeating Switzerland's Roger Federer in the men's singles final on the thirteenth day of the 2019 Wimbledon championships at the All England Lawn Tennis Club
AFP / Getty
35/50 July 13, 2019
The referee counts Nathan Gorman under the eyes of Daniel Dubois during the fight for the British Heavyweight title between Daniel Dubois and Nathan Gorman at the O2 Arena in London.
Getty
36/50 July 12, 2019
The giant panda, Yang Guang, is exploring his new home at Edinburgh Zoo after his move last week
RZSS / PA
37/50 July 11, 2019
The English captain, Eoin Morgan, left, celebrates with teammate Joe Root after winning their Cricket World Cup semi-final match against Australia at Edgbaston in Birmingham. Host nation swept rivals 8 wickets with 107 balls remaining
AP
38/50 July 10, 2019
Andy Murray and Serena Williams discuss as they face Bruno Soares and Nicole Melichar in their third round match-up match at the Wimbledon Championships. The starry pair is released in three sets to the seeded
AFP / Getty
39/50 July 8, 2019
Cori "Coco", aged 15, is serving Romanian Simona Halep in a singles match on the seventh day of the Wimbledon Tennis Championships in London. The youngest woman to qualify for Wimbledon in the open ended defeated Venus Williams in her opening match and qualified for the second week. Halep ended the teenagers' dream race on day six of the tournament, 6-3, 6-3
AP
40/50 July 7, 2019
A competitor participates in the Red Bull Soapbox Race at Alexandra Park, London. The soapbox race is an international event in which amateur drivers race downhill on craft vehicles.
Pennsylvania
41/50 July 6, 2019
Lesbian, gay, bisexual and transgender (LGBT) members participate in the annual Pride Parade in London
AFP / Getty Images
42/50 July 5, 2019
Andy Murray Serena Williams, partner of five mixed doubles, at a training session on the fifth day of Wimbledon
Getty Images
43/50 July 4, 2019
Chelsea's new head coach, Frank Lampard, gives a nod as he poses at Stamford Bridge. The Blues has confirmed the spectacular return of one of the greatest players in its history. He signed a three-year contract with the Premier League club, where he spent 13 years and became the team's top scorer with 211 goals.
AFP / Getty
44/50 July 3, 2019
A gray seal named after Sir David Attenborough is being returned to nature after months of treatment at the RSPCA East Winch Wildlife Center in Norfolk after being discovered with a plastic disk embedded in the neck.
Pennsylvania
45/50 July 2, 2019
The Kirby Estate in London is decorated with St George flags before the Women's World Cup semi-final match between England and the United States.
Pennsylvania
46/50 July 1, 2019
People sleep at the end of the 2019 Glastonbury Festival
SWNS
47/50 June 30, 2019
The crowd enjoys the atmosphere as Years & Years performs on the Pyramid Stage on the fifth day of the Glastonbury Festival at Worthy Farm, Pilton, June 30, 2019 in Glastonbury, England
Getty
48/50 June 29, 2019
A couple crosses the sand with their belongings as people enjoy the sun and warmth of Bournemouth Beach in Dorset. PRESS ASSOCIATION Photo. Date of the image: Saturday, June 29, 2019
Pennsylvania
49/50 June 28, 2019
A lion-tailed macaque stays cool in hot weather eating icy sweet treats with fruit at Camperdown Wildlife Center, Dundee
Katielee Arrowsmith / SWNS
50/50 June 27, 2019
A festivalboy dances with LED hoops on the second day of the Glastonbury 2019 festival
Pennsylvania
1/50 August 17, 2019
Glew (center) and Monroe Adams (right) pose for a selfie with a member of the public outside of DragWorld London 2019, the largest drag convention in Europe, featuring drag stars from the United States and Canada. United Kingdom at a two-day event in Olympia, London.
Pennsylvania
2/50 August 16, 2019
A gray seal with a fishing net entangled around his neck at the Horsey Beach colony in Norfolk, according to RSPCA data, which indicate that the number of animals affected by plastic waste is at his highest level, with an increase of 22% in just four. years
Pennsylvania
3/50 August 15, 2019
A group of sheep are gathered in front of government buildings in London by members of the Farmers for a People's Vote campaign group.
Pennsylvania
4/50 August 14, 2019
Swedish climate activist Greta Thunberg speaks at a press conference in the Mayflower Marina in Plymouth, South West England, on August 14, 2019, prior to her trip to the city. 39 Atlantic in New York, aboard the Malizia II IMOCA class sailboat, where she will attend the UN Summit on Climate Action next month. – A year after her school strike has allowed her to become a figurehead for climate activists, Greta Thunberg thinks her uncompromising message about global warming is going on – even though action remains slim on the ground. The 16-year-old Swede, who travels to New York this week to get her message across to the US, has been targeted for abuse, but sees it as evidence of its effects.
AFP / Getty Images
5/50 August 12, 2019
A hare runs on a moor near Ripon, North Yorkshire.
Pennsylvania
6/50 August 11, 2019
Britain's Jamie Chadwick wins his first-ever W Series title. She pocketed a £ 410,000 prize and, after signing as a development driver for Williams, she maintains her hopes of succeeding in Formula One.
Getty
7/50 August 10, 2019
People gather on the beach like a raft carrying people disguised as clowns heading for the coast at the annual Whitby Regatta in Whitby, England. At over 170 years old, the Whitby Regatta is considered the oldest maritime regatta on the northeastern coast of England and attracts thousands of visitors each year.
Getty
8/50 August 9, 2019
Mary Hamblin, 82, Burryman Andrew Taylor, takes a whiskey tong with a straw, while it scrolls through the town of South Queensferry, near Edinburgh, locked in burrs. The parade takes place on the second Friday of the month of August each year and, although the exact meaning of this tradition has been lost over the years, it is thought that it began in the 17th century. It is believed that tradition brings good luck to townspeople when they give him whiskey offered in the form of straw or a gift of money.
Pennsylvania
9/50 August 8, 2019
A mosque is seen among the residential units from the air during a mass take-off at the annual Bristol Balloon Festival in Bristol.
Reuters
10/50 August 7, 2019
An Asian lioness eats meat at meals before World Lion Day at London Zoo.
Reuters
11/50 August 6, 2019
Beer lovers will sample beer and beer at the Great British Beer Festival in Kensington Olympia, in West London. The Great British Beer Festival, organized by CAMRA, brings together under one roof hundreds of real ales, international beers and real ciders.
AFP / Getty Images
12/50 August 5, 2019
Australia's Nathan Lyon became famous after taking the box office of Englishman Joe Root on the fifth day of the first Ashes test at Edgbaston. The hosts were about to hurt themselves, while Australia won the first test by 251 points.
Getty
13/50 August 4, 2019
Franky Zapata rides on his jet flyboard before landing at St. Margaret's Bay, Dover, as he tries to cross the 35-kilometer (22-mile) channel crossing. ). The Frenchman reached his goal today, on his second attempt, after spending years developing the jet hoverboard.
AFP / Getty
14/50 August 3, 2019
A cricket fan carries a Donald Trump inflatable boat on the third day of the first cricket match with Ashes between England and Australia at Edgbaston in Birmingham.
AP
15/50 August 2, 2019
An RAF Chinook helicopter is flying in sandbags to help repair the Toddbrook Reservoir Dam, which has been damaged by heavy rains.
Pennsylvania
16/50 August 1, 2019
Stuart Broad celebrates after taking David Warner's wicket on the first day of the first Ashes test between England and Australia at Edgbaston. English fans celebrated the loss of the dismissals of David Warner and Cameron Bancroft by waving sandpaper after facing a ban on playing their part in the Sandpaper scandal last year. Australia was eliminated for 284 points after Steve Smith frustrated the hosts with a total of 144. He helped his team go from 122 to 8.
Getty
17/50 July 31, 2019
A bridge collapsed near Grinton, North Yorkshire, after part of the area received up to 82.2 mm of rain in 24 hours Tuesday.
Pennsylvania
18/50 July 30, 2019
Acrobats Beren of Amico, Louis Gift and Charlie Wheeller of the Barely Methodical Troupe perform a routine at Calton Hill, Edinburgh, as they present their first show, Bromance, at Edinburgh Fringe.
Pennsylvania
19/50 July 29, 2019
Theresa, robotic waitress at the Cobham branch of The Tea Terrace in Surrey. Theresa represents the 6th generation of robotic waitresses launched in Japan a few years ago. The robot comes with a standalone navigation; automatic obstacle avoidance, voice conversation and automatic delivery of dishes. It integrates basic technologies into automatic control, multi-sensor perceptual collision avoidance and route planning.
Pennsylvania
20/50 July 28, 2019
Competitors at the World Endangered Nettle Consumer Championship at The Bottle Inn in Marshwood. Competitors are served with long stalks of nettles that rip them off and eat as many leaves as possible.
Getty
21/50 July 27, 2019
A woman in the character of The Muerte from The Book of Life, at the MCM Manchester Comic Con, which sees thousands of sci-fi fans, gamers, comic book collectors, moviegoers and hobbyists cartoons visit Manchester Central
Pennsylvania
22/50 July 26, 2019
The Englishman Jonny Bairstow seizes the dismissal of the Irishman William Porterfield during his test march at Lord & # 39; s. Ireland has tilted 38 times in its second run in just 15.4 assists – the second lowest total in the history of Test matches
Action Images via Reuters
23/50 July 25, 2019
Hamza and Haris are springing up in the water near the National Football Museum in central Manchester, as the UK prepares to face the hottest July day ever recorded.
Pennsylvania
24/50 July 24, 2019
Boris Johnson signals that he will enter 10 Downing Street after being appointed prime minister by the Queen. The former mayor and foreign secretary of London won his bid for leadership of the party by beating Jeremy Hunt's Tory race the day before. Theresa May resigned following her resignation from the Conservative Party on June 7
EPA
25/50 July 23, 2019
Swimmers enjoy themselves in the sea on a giant inflatable Flamingo, South Beach, Tenby, Pembrokeshire
Reuters
26/50 July 22, 2019
The new liberal Democratic leader, Jo Swinson, addresses the audience on the stage after being named to Sir Vince Cable's successor. Swinson defeated his compatriot Ed Davey by 47,997 votes against 28,021 votes
Getty
27/50 July 21, 2019
Adam Peaty broke his own world record in the men's 100-meter breaststroke at the World Championships in Gwangju, South Korea. The 24-year-old beat the previous record of 57.10 seconds that he had set at the European Championships last year to impose in 56.88. In doing so, the UK has achieved one of its career goals: to become the first man to break the 57-second mark in the competition.
Reuters
28/50 July 20, 2019
People's Moon by London artist Helen Marshall, a giant photographic mosaic presented at the exact time 50 years ago that Apollo 11 landed for the first time on Moon, at Piccadilly Circus, London
Pennsylvania
29/50 July 19, 2019
Players from Uganda and Malawi during their Netball World Cup match at M & S Bank Arena, Liverpool
Pennsylvania
30/50 July 18, 2019
Artist Steve Messam poses next to his monumental landscape work "Hush," hanging in the Teesdale Barrens on July 18, 2019 in Barnard Castle, England. The outdoor installation is inspired by the geology, mining history and landscape of the area. The North Pennines AONB partnership commissioned the facility located above Bales Hush, a deep gauge in the ground created when miners rinsed the area with water to reveal the geological riches beneath. Hundreds of meters of recyclable yellow saffron fabric blow in the wind.
Getty
31/50 July 17, 2019
The staff at Buckingham Palace organizes the dining table, a copy of the dessert table of Queen Victoria's reign, as part of an exhibition at Buckingham Palace in London. The exhibition marks the 200th anniversary of the birth of Queen Victoria
AP
32/50 July 16, 2019
Inveraray's bagpipe troupe parades through the city at the start of the Highland Games in Inverarary, Scotland.
Getty
33/50 July 15, 2019
Extinguishment Rebellion activists block roads near Tron Clock Tower in Glasgow
Getty
34/50 July 14, 2019
Serbia's Novak Djokovic wins the winner's trophy after defeating Switzerland's Roger Federer in the men's singles final on the thirteenth day of the 2019 Wimbledon championships at the All England Lawn Tennis Club
AFP / Getty
35/50 July 13, 2019
The referee counts Nathan Gorman under the eyes of Daniel Dubois during the fight for the British Heavyweight title between Daniel Dubois and Nathan Gorman at the O2 Arena in London.
Getty
36/50 July 12, 2019
The giant panda, Yang Guang, is exploring his new home at Edinburgh Zoo after his move last week
RZSS / PA
37/50 July 11, 2019
The English captain, Eoin Morgan, left, celebrates with teammate Joe Root after winning their Cricket World Cup semi-final match against Australia at Edgbaston in Birmingham. Host nation swept rivals 8 wickets with 107 balls remaining
AP
38/50 July 10, 2019
Andy Murray and Serena Williams discuss as they face Bruno Soares and Nicole Melichar in their third round match-up match at the Wimbledon Championships. The starry pair is released in three sets to the seeded
AFP / Getty
39/50 July 8, 2019
Cori "Coco", aged 15, is serving Romanian Simona Halep in a singles match on the seventh day of the Wimbledon Tennis Championships in London. The youngest woman to qualify for Wimbledon in the open ended defeated Venus Williams in her opening match and qualified for the second week. Halep ended the teenagers' dream race on day six of the tournament, 6-3, 6-3
AP
40/50 July 7, 2019
A competitor participates in the Red Bull Soapbox Race at Alexandra Park, London. The soapbox race is an international event in which amateur drivers race downhill on craft vehicles.
Pennsylvania
41/50 July 6, 2019
Lesbian, gay, bisexual and transgender (LGBT) members participate in the annual Pride Parade in London
AFP / Getty Images
42/50 July 5, 2019
Andy Murray Serena Williams, partner of five mixed doubles, at a training session on the fifth day of Wimbledon
Getty Images
43/50 July 4, 2019
Chelsea's new head coach, Frank Lampard, gives a nod as he poses at Stamford Bridge. The Blues has confirmed the spectacular return of one of the greatest players in its history. He signed a three-year contract with the Premier League club, where he spent 13 years and became the team's top scorer with 211 goals.
AFP / Getty
44/50 July 3, 2019
A gray seal named after Sir David Attenborough is being returned to nature after months of treatment at the RSPCA East Winch Wildlife Center in Norfolk after being discovered with a plastic disk embedded in the neck.
Pennsylvania
45/50 July 2, 2019
The Kirby Estate in London is decorated with St George flags before the Women's World Cup semi-final match between England and the United States.
Pennsylvania
46/50 July 1, 2019
People sleep at the end of the 2019 Glastonbury Festival
SWNS
47/50 June 30, 2019
The crowd enjoys the atmosphere as Years & Years performs on the Pyramid Stage on the fifth day of the Glastonbury Festival at Worthy Farm, Pilton, June 30, 2019 in Glastonbury, England
Getty
48/50 June 29, 2019
A couple crosses the sand with their belongings as people enjoy the sun and warmth of Bournemouth Beach in Dorset. PRESS ASSOCIATION Photo. Date of the image: Saturday, June 29, 2019
Pennsylvania
49/50 June 28, 2019
A lion-tailed macaque stays cool in hot weather eating icy sweet treats with fruit at Camperdown Wildlife Center, Dundee
Katielee Arrowsmith / SWNS
50/50 June 27, 2019
A festivalboy dances with LED hoops on the second day of the Glastonbury 2019 festival
Pennsylvania
A boy with pubertal gynecomastia, abnormal breast growth in boys, has also been studied. He was exposed daily to a cologne containing lavender oil and noticed an increase in the chest to four years.
According to an American study, children noticed that their breast tissue became normal again after getting away from lavender-based products.
L’investigateur principal, Jeffrey Ramsey, chercheur à l’Institut national des sciences de la santé de l’environnement (NIEHS) du gouvernement américain, a déclaré: cesser de les utiliser sur les enfants. "
Jusqu'à présent, les recherches ont exclusivement porté sur la manière dont les huiles essentielles pourraient affecter la croissance du tissu mammaire chez les garçons en modifiant le niveau d'hormones.
A étude publiée dans Le journal de médecine de la Nouvelle-Angleterre En 2007, trois garçons pré-pubères en bonne santé avaient des seins plus gros après avoir utilisé des produits contenant de la lavande ou des huiles de théier. Les symptômes ont disparu quand ils ont cessé d'utiliser les produits.
Une équipe de recherche NIEHS, y compris M. Ramsey, a suggéré en 2018 que les huiles essentielles peuvent affecter les niveaux d'oestrogène et de testostérone dans le corps.
Outre des études de cas, les dernières recherches ont permis de vérifier si les composants de ces huiles essentielles pouvaient interférer avec les hormones.
Il a constaté que l'huile de lavande et l'huile de théier peuvent imiter l'œstrogène et bloquer la testostérone.
Selon l'étude, les huiles essentielles ont «une plus grande puissance en tant qu'anti-androgènes qu'en tant qu'œstrogènes», ce qui est «plus pertinent pour bloquer l'action naturelle chez les garçons que chez les filles, où les androgènes inhibent le développement du sein».
Independent Minds Events: impliquez-vous dans l'agenda des nouvelles
Il est encore possible que les symptômes aient disparu naturellement et c’est un hasard si les enfants ont cessé d’utiliser ces huiles au même moment.
Les chercheurs ne recommandent pas «d'éviter ces produits», mais plutôt «devraient être pris en compte dans l'évaluation du développement prématuré du sein chez les filles et de la gynécomastie chez les garçons et les hommes adultes».
L’industrie des parfums et de l’aromathérapie a souligné la différence entre les huiles essentielles biologiques et non biologiques, critiquant les études antérieures sur l’utilisation d’huiles non biologiques susceptibles d’être contaminées.
L'étude a été publiée dans Le journal de l'endocrinologie clinique et du métabolisme.
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