As soon as they had sex on July 27, Bryan Johnson tells me, he knew his cofounder and girlfriend, Kate Tolo, was hours away from getting her period.
Normally, the couple has sex two to three times a week, most often between 3 and 5 p.m. “Too close to Bryan’s bedtime” — 8:30 p.m. — “is a problem,” says Kate, her knee touching Bryan’s thigh on the couch, late afternoon sunlight dappling their pale cheeks. And it’s electric, they tell me. “It’s all there: primal, love, safety, connection,” Bryan says. “I don’t know what the stat is, but some substantial proportion of women never have an orgasm.” Kate smiles. She is not among this substantial…
