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When a person reaches adulthood, his brain is the biggest of all time. As the age progresses, human brains tend to move away a bit from their top, and this is something that has been known for some time. However, there is a significant difference between men and women in terms of "aging" the brain as we all age.
In a new study published in the Proceedings of the National Academy of SciencesResearchers at the University of Washington School of Medicine in St. Louis say women's brains tend to stay younger than their male counterparts, even when both are the same age. But what is particularly interesting is that scientists have even been able to calculate how much the brain of men was older.
The researchers, led by Dr. Manu Goyal, studied the brains of more than 200 people in search of answers. The participants were between 20 and 82 years old. The team studied each person's brain using scanners to determine the amount of oxygen and glucose used by the organs. These measurements indicated to researchers the "metabolic" age of the brain, which could then be compared to the age of each person.
When they badyzed the numbers, the team found that the metabolic age of women's brains was on average 3.8 years younger than that of men of the same age.
The data was consistent from one end to the other and it is clear that there is a fundamental difference between the brains of men and women. However, we still do not know exactly which mechanisms play a role. Researchers say that men's brains reach their peak three to four years earlier than women's, and that this difference continues throughout their lives. Why this is so and if it could be important for research on diseases like Alzheimer's, will require further research.
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