A single gene in the shorebird species known as ruffs controls the levels of testosterone in males, and this in turn affects ...

Track and field moved toward adopting rules that would place athletes assigned female at birth but have higher testosterone ...

In today’s fast-paced world, men are increasingly seeking effective solutions to enhance their sexual health and overall vitality. With the rise of various male enhancement products, one particular ...

The quest for effective natural supplements has gained significant traction in men’s health and wellness. One such product ...

He says a special form of the steroid hormone gene ... with some hyper-testosterone disorders with this form of enzyme, or a synthetic enzyme designed based on its structure." ...

had to undergo testosterone-suppression therapy for two years to be eligible. Now they may be ineligible regardless of whether they've done hormone therapy. The new rules would also eliminate ...

He says a special form of the steroid hormone gene identified in ... of treating people with some hyper-testosterone disorders with this form of enzyme, or a synthetic enzyme designed based on its ...

A longitudinal study in Israel found that fathers with more pronounced alexithymia before the birth of their child provided worse parental care when the baby was three months old. At two years of age, ...