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A new study found that childhood environments play an important role in testosterone levels later in life. Higher levels of testosterone are linked to prostate cancer, and lower levels are related to low libido.
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Men usually have to pass a lab test to check testosterone levels, but a new study suggests that childhood environments might be a better indication.
What did the researchers discover about testosterone?
Researchers have found that men's testosterone levels largely depend on where they live, and geographical settings can alter testosterone levels in childhood. When men reach adulthood, ecology no longer plays a role.
The results were published on June 25 in the journal Ecology of nature and evolution.
The study found that young boys living in a harder environment filled with dangerous diseases could result in lower levels of testosterone in adulthood. Similarly, boys who grew up in healthier and privileged homes tend to have higher levels of testosterone later in life. This demystifies the old notion that testosterone levels were more likely to be decided by hereditary influences.
Energy played a big role in testosterone levels. Essentially, boys who grow up in environments with more illnesses are required to use more energy to survive. Boys with fewer challenges use less energy and end up with higher levels of testosterone.
"Once a man" spends "part of his investment on reproduction, he determines his regular testosterone levels for the rest of his adult life," said lead author Dr. Kesson Magid. Inverse.
How did researchers link childhood experiences to testosterone levels?
The researchers studied the data of 358 men. In the study, 107 men were born and raised in Bangladesh, 59 were born in Bangladesh, but emigrated to the UK when they were children, 56 men were born in the UK and have parents Bangladeshi. Indigenous Europeans were also included in the study.
After examining the height, weight, age of puberty and other health data, the researchers found that men who grew up in the UK had higher testosterone levels than those who grew up in Bangladesh. Men in the UK were also taller and reached puberty at a younger age. Researchers say this proves that the environment – and not ethnicity – has played a bigger role in testosterone levels as an adult.
The future implications of this study on testosterone
Higher levels of testosterone have already been linked to the risk of prostate cancer and other implications. In addition, low testosterone levels have been linked to other health problems such as low libido. These results suggest that screening for prostate cancer and libido should take into account the childhood environment.
"It may be important to learn more about men's childhood circumstances to have a more complete picture of their risk factors for certain conditions or diseases," said Professor Gillian Bentley, co-author author.
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