Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles. These hormones not only influence the body, but can cross into the brain and shape the behavior ...
For much of the 20th century, scientists believed that the adult human brain was largely fixed. According to this view, the ...
A study of nearly 10,000 adolescents has identified distinct differences in the brain structures of those who used substances before age 15 compared to those who did not. Many of these structural ...
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