Tea is unlikely to dehydrate you when consumed in moderate quantities. However, drinking more than eight cups at once can ...

Many use l-theanine to improve stress disorders, mood and sleep hygiene. Yes. While black tea has less caffeine than coffee, it’s still a caffeinated beverage. Black tea has about 47 milligrams of ...

A registered dietitian dives into the benefits of black vs. green tea, highlighting which one may be best for your personal needs.

It is less processed than other teas and is rich in antioxidants. It naturally contains caffeine and is also available in a ...

L-theanine is also present, in lower concentrations, in black tea. There’s less research on the effects of coffee on stress, but researchers have found moderate to high amounts of caffeine are ...

One cup of tea, by contrast, only contains 30 to 50 mg of caffeine. "Generally speaking, coffee has two to three times more caffeine compared to a similar-sized black tea," says Matthew Chow ...

A fragrant cup of tea ... black tea may be less likely to have a heart attack, possibly because theaflavins—the polyphenols that dominate—help control inflammation and relax blood vessels ...

followed by green tea and then black. But all have significant amounts of disease-fighting agents, antioxidants and caffeine. Avoid large consumption of caffeine if you're pregnant or have high ...

Oct. 4 at 6:05 a.m. Do you start your mornings with a potent dose of caffeine from a freshly brewed ... nudge from a warm and gentle cup of tea? Whatever your preference, scientists have found ...

Your morning cup of joe could protect against type 2 diabetes, coronary heart disease, stroke, and other cardiometabolic ...

The newly discovered substance was dubbed "caffeine," meaning something found in coffee. Then, in 1838 chemists discerned that the effective ingredient in tea was ... a large black dog sleeps ...