"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." I swapped my usual tea for yerba mate before a competition — and played the best tennis of my life.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." I swapped my usual tea for yerba mate before a competition — and played the best tennis of my life.

This article may contain affiliate links that Yahoo and/or the publisher may receive a commission from if you buy a product or service through those links. More than just a way to get a caffeine kick, ...

Sure, you know that black and green tea are good for you. But it turns out there are other brews that are just beneficial.

Yerba mate is an herbal tea that contains caffeine, antioxidants, and other nutrients that may offer benefits, such as protecting heart health. Its potency may vary based on how it's prepared. Yerba ...

I have been competing in USTA (United States Tennis Association) Leagues for almost a decade. During one recent showdown, I discovered the sweet spot isn’t on my tennis racket — it’s in a cup of yerba ...