Bryan Johnson spends $2 million a year to look 18 and is swapping blood with his father and son, just like the blood boy.
As fun family activities go, this one is pretty out there.
On April 3, the tech entrepreneur Bryan Johnson, 45, turns up at a health services clinic near Dallas with his 70-year-old father Richard and 17-year-old son Talmage. They arrive early in the morning, and, over the course of several hours, the men (and boy) engage in a tri-generational swapp...
