Gregarious female giraffes that develop a sense of larger community live longer than those with fewer friends, a new study shows.

A metabolite called colanic acid can extend the lifespan of worms as much as 50%. New research uses optogenetics to clarify that discovery.

Having a female bestie gives male baboons a better chance of survival, a new study shows.

Isolation and loneliness can have major physical and mental health consequences. New research shows socializing is critical to survival and longevity.

A study of 17.5 million Americans born between 1950 and 1980 shows that food assistance pay off in future earnings, education, and even lifespan.

Areas of the US with more fast food, lots of oil and gas extraction jobs, and higher population density have lower life expectancy, new research shows.

"Apart from an increased risk of death due to suicide, we confirmed increased risk of death due to...cancer, respiratory diseases, and diabetes."

For baboons, the effects of early adversity show up years later in the next generation, even when those offspring had it easier than their mothers did.

People with greater optimism are more likely to live longer and to achieve "exceptional longevity"—that is, getting to age 85 or older.

Lifespan refers to time, but healthspan indicates quality. New research suggests they have separate molecular switches.