Coffee drinking is bad. Coffee can't be drunk.

Bad things about coffee

1. Caffeine helps improve alertness, agility, memory and concentration. But drinking more coffee than you're used to can produce stimulants similar to those consumed in the same dose, which can cause nervousness. For people prone to anxiety disorders, caffeine exacerbates sweaty palms, palpitations and tinnitus.

2. Caffeine is often combined with other simple painkillers because of its analgesic effect, but if you take it in large quantities for a long time, if you already have high blood pressure, using large amounts of caffeine will only make your situation worse. Because caffeine alone can raise blood pressure, when combined with emotional stress, it can have a dangerous multiplier effect, so people at risk for high blood pressure should avoid caffeinated beverages especially when they are under high pressure at work. Some regular coffee drinkers think they are immune to caffeine's effects, but that's not the case, with one study showing blood pressure can rise for up to 12 hours after drinking a cup of coffee.

3. Osteoporosis induced caffeine itself has a good diuretic effect, if long-term and large amounts of coffee, easy to cause bone loss, bone preservation will have an adverse impact, for women, may increase the threat of osteoporosis. However, the premise is that the usual food is already lacking in adequate calcium intake, or people who do not often move, plus post-menopausal women, calcium loss caused by lack of estrogen, these conditions plus a lot of caffeine, may pose a threat to bones. If you can enjoy it in reasonable amounts, you can still do it without choking.