I use to drink 8-10 cup of coffee a day….mainly for energy….but cut back to 2 cups a day first thing in AM. And that works….my brain seems wakeup and to fall into place. I did try decaffeinated but it felt awful on my stomach…tea made me feel bloated….I was told I had neuropathy. I have no pain but my feet and hands are always cold….(holding the warm coffee cup helps with that)Because I am pre-diabetic and CKD3 I dilute each of my coffees(4oz))with 12oz of water and 1Tbs 35% cream…..this way I get a big amount of liquid without carbs. The rest of the day I drink hot water with a slice of lemon. This seems to work, I am able to work in the studio without loss of energy until around 5-6pm. I also bounce on my toes and rub my hands to warm them and long arm-stockings keep them warm. I hope this helps someone.