The Kostenki 11 site, located near the Don River, just 300 kilometers from Moscow, is one of the most significant Upper ...

Feb. 11, 2025 — Researchers have discovered a new mechanism that is used by a male sex hormone essential for muscle and bone function. The findings could lead to the development of new drugs ...

Vitamin D synthesis—which takes place in the skin—promotes calcium absorption. Calcium is needed for the growth and maintenance of bones, as well as for muscle contractions. The endocrine system ...