New Delhi, Aug. 13 -- Bryan Johnson, the 47-year-old tech entrepreneur who has spent millions on his quest to reverse his biological age, has shared research-backed advice for a longer life. Taking to Instagram, Johnson explained how those with "high levels of social engagement" were not only happier but also biologically younger. Compared to the least social group, these individuals had:

42% lower risk of death over four years

15% slower biological aging

16% higher physical activity levels

In short, Johnson claimed that staying socially connected didn't just boost mood - it helped bodies function as if they were years younger. So, for the sake of your health (and your mitochondria), say yes to that coffee date or community event. jus...