1, drinking coffee after hangover can quickly oxidize acetaldehyde converted from alcohol, decompose it into water and carbon dioxide and excrete it;

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 and lose weight. Black coffee is more diuretic.

3, relieve constipation coffee can promote metabolic function, activate digestive organs, and have 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 one 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, so as to quickly relieve constipation.

The disadvantages of coffee to human health

1, causing nervousness. For people who tend to have anxiety disorders, caffeine can make the symptoms of sweaty palms, palpitations and tinnitus worse.

2, coffee can 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, which will have an adverse impact on the preservation of bone mass.

4. Caffeine can 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 physical and psychological adverse reactions, such as nervousness, irritability, anxiety, tremor, muscle twitching (hyperreflexia), insomnia and palpitation.

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