I can't fall asleep. I was up all night. I didn't sleep a wink last night. I tossed and turned in bed last night. I've been having trouble sleeping lately. Do any of you suffer from insomnia?
Exercise increases adenosine, as does any activity (this is why, if we’re not active during the day, we may have trouble getting to sleep at night). Adenosine builds up in the brain to create ...