A first-of-its-kind shot that promises to reverse aging was just injected into a human body. It's a pivotal moment for longevity science, the first opportunity for researchers to prove that epigenetic ...

A poop transplant — otherwise known as a fecal microbiota transplant (FMT) — may help adults with long-term insomnia sleep better, a small study suggests. After the transplant, study participants' gut ...