Lonely older adults live fewer years than non-lonely peers—and they're less active and in poorer health, a new study shows.

More people are living to be 100 years old, but how long will human lifespan reach in the 21st century? Researchers may have some answers.

The average person today can expect to live almost twice as long as people in the 1850. But don't get too excited. There's still no cheating old age.

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.