That's easy to check. I'm currently insanely jet lagged and super tired, yawning every few minutes. My pulse oximeter is indicating 99% saturation, so that's not it.
Edit: on the other hand, I'm a flight attendant, so my body is used to lower oxygen atmospheres, so I usually have >98% O2 levels.
That's what I'm trying to avoid lmao. Luckily I have a job where quality coffee isn't readily available, so I can only drink what I have at home. Thanks to that, I enjoy coffee, but me feeling good in the morning isn't dependent on it.
It's definitely a taste that not everyone likes. I personally love coffee with a bit of sugar (1/2 a teaspoon per espresso shot). I also love espressos but hate Americanos. Maybe it's the type of drinks you tried?
That's easy to check. I'm currently insanely jet lagged and super tired, yawning every few minutes. My pulse oximeter is indicating 99% saturation, so that's not it.
Edit: on the other hand, I'm a flight attendant, so my body is used to lower oxygen atmospheres, so I usually have >98% O2 levels.