You will never get tolerance to negative health effects. "Healthy" dose according to CDC is like 5 cups of coffee per day. Permant dierhia and no sleep is wort

You will never get tolerance to negative health effects. "Healthy" dose according to CDC is like 5 cups of coffee per day. Permant dierhia and no sleep is worth it, because it may reduce risk of alzhaimers by 2%. There is no upside. Just stop consuming that poison!