Mass General Brigham

When we eat as we get older changes, but what impact this has on our health isn't well understood. New research, however, has found that in midlife and beyond, eating one particular meal later in the day is linked with a higher risk of early death.

If you deal with waves of daytime drowsiness, you might be among the estimated 33% of the population suffering from excessive daytime sleepiness. In the largest study of its kind, scientists have uncovered the condition's unique biological fingerprint.

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.