Sir David Attenborough Is 100 Years Old Today! This Could Be the Secret of His Longevity.

Sir David Attenborough turned 100, prompting fresh interest in what drives exceptional longevity.

The article says long life appears to reflect a mix of inherited traits, health habits, purpose, and luck.

Research cited from longevity studies suggests genetics matters, but behavior and psychological well-being also play major roles.

His milestone is used to frame broader questions about aging well and what helps people reach very old age.