Tahsin Khan

Welcome! I have TWO newsletters that you can learn about below.


Friends & Family: Monthly Personal Updates


Every month, I send out an update to friends, family, and close acquaintances.


Why Subscribe? Think of it as a friendly catch-up email from me. Check out some past updates here.


Vital Shift: Weekly Insights on Longevity


Each week, I share insights on aging and longevity. From understanding key longevity indicators like VO2 max and muscle mass to practical tips for vitality.


Why Subscribe? For anyone looking to stay fit, strong, independent, and full of energy — today and in the years to come. Take a peek.



Can’t Decide?

That’s okay. You’re welcome to explore BOTH newsletters and find the rhythm that fits you best.