Caffeine is the main active ingredient in coffee, which is related to anxiety. At high doses, usually more than 300 mg, caffeine can cause and aggravate anxiety.

2. The risk of fracture in women may increase, and the risk of miscarriage or birth weight loss in pregnant women may increase.

3, drinking coffee will cause people's mental excitement, and caffeine will affect sleep within 4 hours after drinking coffee.

The benefits of drinking coffee:

1 can induce diuresis, stimulate the central nervous system and respiratory system, dilate blood vessels, accelerate the heartbeat, enhance the strength of striated muscles, and relieve brain and muscle fatigue.

2, the right amount of caffeine will accelerate metabolism, promote digestion, improve constipation, and can improve rough skin.

3, can enhance physical strength, which will help you exercise for a longer time and make the exercise effect better.

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