Perhaps you know if this makes any sense or if it's just a personal impression of mine.
I started taking coffee at 20, for some two or three years, I later started taking black tea instead. One teaspoon of Twinnings Earl Grey, to be precise.
Thing is, by any calculation I do, a cup of coffee ought to have more caffeine in it than the cup of tea. Especially since I sometimes had not one, but two cups of coffee back then. I can still do this, if I'm travelling or I spend the day outside for some reason I'd rather take coffee than tea.
Problem is, tea wrecks my sleep in a way coffee just doesn't. It feels as if tea stays with me way, way longer than coffee does. If I ever take more than one cup of tea in a day I know that I'll be feeling it the next day, maybe even the day after, whereas with coffee, as long as I don't take it too late in the day I'm largely ok. Sleep does worsen somewhat but nothing I can't manage.
It puzzles me, since as far as I know it's caffeine in both cases, I don't understand why my metabolism seems to act in such a different way.
I started taking coffee at 20, for some two or three years, I later started taking black tea instead. One teaspoon of Twinnings Earl Grey, to be precise.
Thing is, by any calculation I do, a cup of coffee ought to have more caffeine in it than the cup of tea. Especially since I sometimes had not one, but two cups of coffee back then. I can still do this, if I'm travelling or I spend the day outside for some reason I'd rather take coffee than tea.
Problem is, tea wrecks my sleep in a way coffee just doesn't. It feels as if tea stays with me way, way longer than coffee does. If I ever take more than one cup of tea in a day I know that I'll be feeling it the next day, maybe even the day after, whereas with coffee, as long as I don't take it too late in the day I'm largely ok. Sleep does worsen somewhat but nothing I can't manage.
It puzzles me, since as far as I know it's caffeine in both cases, I don't understand why my metabolism seems to act in such a different way.