2, coffee has the effect of hangover. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it.
3, coffee can eliminate fatigue. To eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.
4. People with hypertension, coronary heart disease, arteriosclerosis and other diseases drink coffee for a long time or in large quantities, which will cause cardiovascular diseases.
5, vitamin B 1 deficiency is not suitable for drinking coffee, because vitamin B 1 can maintain the balance and stability of the nervous system, and coffee has a destructive effect on it.
6. After menopause, women need to supplement ten times the amount of calcium every day. Drinking coffee in elderly women will reduce calcium and cause osteoporosis. More than two cups of coffee a day will increase the probability of fracture by about 50%. Experts believe that it is safest for the elderly to drink coffee once a day.
7. Drinking too much coffee in patients with stomach diseases will lead to aggravation of stomach diseases.
8, pregnant women drink too much coffee, which will lead to fetal malformation or miscarriage.
Drinking too much coffee is dangerous for normal people.