Two things, pretty closely related.
Anyone know how much caffeine the black tea at Starbucks packs?
I am an iced tea hound, and consume a lot of it daily--usually with no ill effect.
BUT, a couple of vente teas fron SB and my head feels like it's going to
explode and I swear I can hear my heart pounding.
Secondly...
Might anyone know if, as we age, we tend to tolerate caffeine less well?
It seems odd to me that I get the shakes now, drinking less of the juice, than I did when in my twenties, pounding stuff with caffeine.