How embryos and the uterus 'talk' during implantation

A new study shows that the embryo and the uterine lining conduct an active "conversation" from the very earliest stages of ...
Nature

Tapping into the body’s master clock could re-energize skin cell repair

The human body operates on a roughly 24-hour cycle known as the circadian rhythm. The cycle is primarily controlled by the suprachiasmatic nucleus — two clusters of neurons in the hypothalamus. This ...