1. Drinking coffee after a hangover can quickly oxidize acetaldehyde converted from alcohol and decompose it into water and carbon dioxide to be excreted;

2, diuretic dehumidification caffeine can promote kidney function, discharge excess sodium ions in the body, increase urination, improve bloating and edema, and help to lose weight. Black coffee is more diuretic.

3, relieve constipation coffee can promote metabolic function, activate digestive organs, and have a great effect on constipation.

4, improve liver function research results show that patients with chronic liver diseases such as hepatitis or cirrhosis, if they drink more than a cup of coffee every day, their liver function will be improved.

5, appetizing caffeine will stimulate sympathetic nerve, stimulate gastrointestinal secretion of gastric acid, promote digestion, prevent bloating, gastroptosis, and promote gastrointestinal hormones and peristalsis hormones, thus quickly relieving constipation.

The disadvantages of coffee to human health

1, causing tension. For people with anxiety tendency, caffeine can aggravate the symptoms of sweating, palpitation and tinnitus.

2, coffee will lead to an increase in blood pressure and promote the contraction of blood vessel walls.

3, inducing osteoporosis Caffeine itself has a good diuretic effect. If you drink a lot of coffee for a long time, it will easily lead to bone loss and adversely affect the preservation of bone mass.

4. Caffeine will increase gastric acid, and continuous high-dose intake will lead to peptic ulcer, erosive esophagitis and gastroesophageal reflux disease.

5, caffeine poisoning, caffeine poisoning includes addiction and a series of physiological and psychological adverse reactions, such as tension, irritability, anxiety, tremor, muscle twitching (hyperreflexia), insomnia, palpitations and so on.

6. Caffeine will also reduce women's chances of conception, increase the risk of miscarriage and slow down the development of the fetus.