Drink coffee at least 40 minutes before exercising

　　Be careful to finish drinking coffee Do not exercise immediately after drinking coffee, otherwise it will increase the burden on the gastrointestinal tract; moreover, caffeine will be absorbed by the body only 40 minutes after drinking coffee. Therefore, Hu Yang suggested that the best effect would be to exercise 40 minutes after drinking coffee.

But this does not mean that the more coffee you drink before exercise, the better. Overdose, when too much caffeine is consumed, coffee becomes a stimulant. In large-scale international sports competitions, if athletes drink too much coffee, they may fail the banned drug test due to high caffeine content in their bodies and be disqualified from the competition.

Excessive consumption of coffee can also affect appetite, insomnia, and cause vomiting; increase urine output, damage the bladder, and then cause urinary tract infection; cause movement disorders, trembling hands, or slurred speech.

So, what is considered an overdose? For example, drinking one or two cups of coffee per day, such as small packages of coffee sold in the market, will not be an overdose.