This article was reviewed by Felix Gussone, MD. Low Testosterone and Joint Pain: What’s the Connection? Your knees, ankles, ...

Scientists tracked 14 elite endurance athletes for a year and found a metabolic ceiling: no one sustained more than 2.5× ...

This valuable study addresses the effects of selection on aggression on fitness and life-history trade-offs in Drosophila melanogaster. However, the evidence presented is incomplete and does not ...

A new study has shown the ovary’s tissues and cells play a bigger role than previously thought in how fertility wanes.

Researchers confirmed that sperm accumulate mutations over the years, increasing the risk of transmitting diseases to ...

This study presents a useful inventory of genes that are up- and down-regulated in the mouse small intestine (duodenum and ileum) during the first postnatal month; the data were collected and analyzed ...