Explore how the compounds in a cup of tea affect your brain, heart and gut, and when tea can work against you.
It’s 3 p.m., you’re fading fast, and you reach for a cup of tea. Before long, you feel sharper, yet oddly calm. But what’s actually happening inside your body? And is that daily cup doing you any good? Explore how caffeine, L-theanine and polyphenols travel through your brain, heart and gut, what the largest studies really say about tea and a longer life, and the surprising ways tea can backfire.
This video is for general education and is not medical advice.
Written and animated by
Chapters
0:00 What’s really in a cup of tea?
0:33 Your brain: caffeine and L-theanine
1:36 Your heart: polyphenols and blood pressure
2:54 Your gut: the microbes
3:19 The limits: iron, heat, extracts, sleep and sugar
4:21 So, is tea good for you?
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