I've noticed something weird. My first mug of coffee in the morning wakes me up (I had it at about 5:30am)
My second one (at 10:00am), made me feel sleepy a few minutes later.
If I do drink a lot during the day, I can't sleep at night, so I do get an effect from caffeine.
I usually have the 1st one with coconut milk + virgin coconut oil + BCAA +cinnamon. The 2nd one, I just had with just coconut milk and vanilla extract and nothing else, and it was about half the size.
Is this a coincidence, or is it a sign of something I need to pay attention to?