So how is one to know how much caffeine is in a cup of coffee, anyway? Java is only one of the best sources of caffeine. How ...

Medically reviewed by Sohaib Imtiaz, MD A 12-ounce cup of matcha tea made with 2–4 grams, or one-half to 1 teaspoon, of ...

Caffeine affects the body in a variety of ways, particularly if you drink a lot. Having too much can cause gastrointestinal ...

We’re a nation fuelled by caffeine. We drink about 100 million cups of tea a day, according to the UK Tea & Infusions ...

Matcha’s powerhouse compounds — like EGCG, l-theanine, and polyphenols — work synergistically to support nearly every major ...

Discover the effects of caffeine on brain health according to neuroscientist Dr. Wendy A. Suzuki. Learn about the benefits of ...

So, is drinking coffee a possible anxiety trigger—and can you still enjoy a caffeinated cup without the negative side effects? We asked experts. Caffeine is the main active ingredient associated ...

So, is drinking coffee a possible anxiety trigger—and can you still enjoy a caffeinated cup without the negative side effects? We asked experts. Caffeine is the main active ingredient associated ...

The Caffeine-L-Theanine Synergy: Calm Focus In A Cup Caffeine’s tendency to induce jitters or overstimulation is well-documented, but pairing it with L-theanine, an amino acid found in tea ...