Worth mentioning that though tea does contain polyphenols and flavinoids which are good for us (and l-theanine and caffeine which we enjoy introducing to our nervous systems), it's had a much bigger impact on health historically because it required us to heat water to boiling (or near boiling, depending on what kind of tea you're making).
Also, can't miss a chance to spice things up with the mention of adding salt to brewed tea[1]. Which is heretical, but seems palatable to me, though I probably wouldn't do it to good tea.
Salted black tea with butter is delicious (https://simplytibetan.com/2010/12/07/bho-ja/)
When I switched to black coffee I read that putting a tiny bit of salt in cuts the bitterness. It works and the amount of salt needed is so small that you don't taste it, less than a pinch.