This article was reviewed by Felix Gussone, MD. Key Takeaways: Hormones play a major role in regulating metabolism, mood, ...

A dioxin toxin contained in the herbicide Agent Orange affects male reproductive health by limiting the growth of the prostate gland and lowering testosterone levels. A dioxin toxin contained in the ...

Larger penis size influences female attraction and male rival threat perception, highlighting how sexual and competitive pressures together shaped human sexual evolution.

Sperm carry more than DNA. They carry a complex network of lipids that guide energy use, membrane fluidity, motility, and the ...

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study ...

New insights into a sophisticated process that protects sperm cells has revealed a mechanism, similar to an immune system, ...

Why do we sometimes keep eating even when we're full and other times turn down food completely? Why do we crave salty things ...

As our behavior is determined by our brains, understanding which neurological circuits are involved at the beginning of the ...

Why do we sometimes keep eating even when we're full and other times turn down food completely? Why do we crave salty things ...

New York startup Helaina, which ferments microbes to create recombinant breast milk proteins, is ushering in a new dawn for ...

“We may cross a tipping point when most men will be sub-fertile,” says one expert. Here are environmental and lifestyle factors that could increase a man’s risk. Coloured Scanning Electron Micrograph ...