In a world obsessed with staying young, one man is pushing the boundaries of what's possible. Tech millionaire Bryan Johnson ...

Bryan Johnson, the tech mogul known for his anti-aging crusade, has undergone a full-body plasma replacement, a procedure involving draining all his plasma and replacing it with albumin.

Bryan Johnson says he's slowed his father's rate of aging using his "super blood." Johnson's 70-year-old father saw his rate of aging slow by about 25 years, he said on X. Johnson did not reveal ...