A typical human pregnancy lasts 40 weeks, but most parents know this number is only a rough estimate. Babies are born on a seemingly unpredictable timeline, with a normal pregnancy ranging from 38 to ...
In recent years, a spate of potential male contraceptive options have cropped up. From a hormonal gel that lowers testosterone production to a non-hormonal pill that blocks the creation of vitamin A, ...
Photo composite of human egg (oocyte) and sperm (spermatozoon), colored scanning electron micrograph (SEM). In the first clinical trial of its kind, a nonhormonal oral contraceptive that reversibly ...
Men might finally get a chance to bench their swimmers. A first-of-its-kind male birth control pill just cleared its first human safety test, raising hopes that it could soon open the door to a new ...
Human fingers and toes do not grow outward; instead, they form from within a larger foundational bud, as intervening cells recede to reveal the digits beneath. This is among many processes captured ...
Newborns' brains may look relatively smaller than those of other primate babies, but it's not because they're "underdeveloped" by comparison. When you purchase through links on our site, we may earn ...
A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just concluded its first safety trial in humans, getting a step closer to increasing ...
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