We treat sleep as though we can borrow from it indefinitely. But the body keeps its own accounting. Chronic sleep loss can affect metabolism, cardiovascular health, cognition and recovery, and some of what we accept as “getting older” may actually be made worse by inadequate sleep.

When emotional stress builds, it can become physical — affecting your energy, concentration, sleep and ability to make decisions. Here’s what happens when your system becomes overloaded and some simple ways to help yourself regain your footing.

Choosing a probiotic shouldn't come down to buying the bottle with the biggest number. Learn what CFUs, strains and different formulations actually mean—and how to choose a probiotic based on why you're taking it.

September can feel like the other January—a natural time to begin again. Instead of another diet or 30-day challenge, use the season to take a closer look at your energy, sleep, strength, nutrition, stress and what your body actually needs.

Magnesium glycinate, citrate and L-threonate aren't interchangeable. Here's how the three forms differ, what the research actually says, and how to decide which magnesium makes sense for you.

We’re very good at pushing through fatigue, stress, poor sleep and the feeling that something just isn’t right. But by the time the body starts yelling, it may have been whispering for quite a while. What if better health sometimes begins simply by paying attention?

Vitamin D is important, but more is not automatically better. Here’s what to know about D3, K2, MK-7, 5,000 IU dosing, blood testing and when supplementation actually makes sense.

Magnesium is everywhere right now — for sleep, stress, muscle cramps and more. But do you actually need a supplement? Here’s how to think about magnesium intake, testing, different forms, dosage and what you’re actually trying to accomplish.