Scientists are obsessed with the blood of people who live past 100—and for good reason. Turns out, these ‘superagers’ have unique blood markers that might help explain their crazy-long lives. One 117-year-old even had cells that acted way younger than her age! Researchers think cracking this code could mean new ways for the rest of us to live longer and healthier. Would you get a ‘longevity blood test’ if it existed? #Science #Longevity #Superagers