A well-functioning gut, a stable metabolic system and a resilient immune response are not separate goals — they are deeply interconnected components of whole-body health.

Sleep used to be something people trusted their bodies to handle on their own. You went to bed, turned off the light, and hoped for the best. Somewhere along the way, that simplicity disappeared.

This story is part of our mental health series. Find out more here. We all know people who are very dedicated to their daily routines. Maybe they go to the gym at the same time every day or have a set ...

We’ve been force-fed the idea for decades: The secret to success is routine. Wake up at 5 a.m., step into a punishing physical routine, follow a strict schedule and stick to your plan no matter what.