Forget cheat days, parties and dinner: longevity requires sacrifices according to Bryan Johnson, the man trying to live ...

Johnson says he knows this because he uses a tracking device that measures how often his penis engorges with blood at night, and for how long. (As one does.) Last month on X (formerly Twitter), ...

Researchers from China, Japan, and the US have 3D-printed a full penile system using a hydrogel-based model. The bioengineered component designed to imitate a portion of the penis was implanted into ...