- You're the Life of the Party: Researchers speculate that their more resilient brains may be due to lower levels of cortisol--studies show that oversecretion of this "stress hormone" can inhibit brain cells' communication.
- You're a Flourisher: They have a positive outlook on life, a sense of purpose and community, and are healthier than "languishers"
- You Really Like Your Friends: "Good interpersonal relationships act as a buffer against stress," says Micah Sadigh, PhD
Chronic stress weakens the immune system and ages cells faster, ultimately shortening life span by 4 to 8 years, according to one study.
Here, the latest research on longevity--science-based signs you're on a long-life path, plus tips on how to get on track.