Caffeine
Other
Focus during swims
"Even understanding the sort of biochemistry on 400 milligrams of caffeine... certainly with caffeine, Cognizin, I'll be having that pretty much on most swims."
More source quotes
Energy, focus, cognitive performance; potential dementia prevention
"I'll probably drink 800 milligrams of caffeine a day and I'm fine. The new data basically say up to about 400 milligrams per day, caffeine is great for the brain, for the body. It can offset dementia."
Daily alertness and cognitive performance
"I consume caffeine every day. I love caffeine. Nicotine is sort of similar, although caffeine is safer — it can even improve health."