This study shows a connection between the gut microbiome and skeletal muscles, suggesting that gut bacteria make certain substances that help skeletal muscles to grow after exercising.

Retired older adults who used the Internet regularly exhibited better signs of cognitive function, as measured by word recall tests. This protective effect was found to be most significant amongst women.

Mice on a high-fat diet (which leads to obesity) experience a depletion of hair follicle stem cells through a cascade of inflammatory signaling, which blocks hair follicle regeneration and leads to hair loss.

Older adults' saliva contained differing metabolites related to taste and muscle activity, suggesting an age-related loss in taste and decreased swallowing ability.