Mass General Brigham

Animals that produce their own light source, through an internal chemical reaction, are a true wonder of nature – and something biotechnology scientists have been working hard to replicate and adapt for human use. They've now made a huge breakthrough.

Taking a vitamin D supplement can knock years off your biological aging, according to the results of a large, long-term study. This may not seem like a lot, but it's a significant amount as you become increasingly susceptible to disease as you age.

A new study has uncovered a previously unknown link between the immune system and the fear response, and how psychedelics can play a role in suppressing it. The finding could improve the treatment of both mental, emotional and physical afflictions.