Why does drinking coffee affect appetite?

Although coffee is good for the human body, it must be in moderation, no more than 4 cups of about 800-1000cc per day, for people who are prone to nervousness and anxiety, drinking too much may be harmful - caffeine helps improve alertness, sensitivity, memory and concentration. But drinking more coffee than you're used to can produce a similar dose of stimulant and cause jitters. For people with anxiety disorders, caffeine can worsen symptoms such as sweaty palms, heart palpitations, and tinnitus.

The disadvantages of coffee. 1. People who are accustomed to drinking a lot of coffee stop drinking coffee, and they will have symptoms such as headache, irritability, muscle tightness and nervousness, and the symptoms disappear only when they are consumed with caffeine.

2. Women who are pregnant and breastfeeding should drink coffee in moderation, because caffeine will penetrate into the placenta and will appear in breast milk.

3. Drinking coffee can cause people to be mentally excited, and within 4 hours of drinking coffee, caffeine will affect sleep.

Whether coffee has an impact on health is a topic of great concern to many people, and scientists have debated it for many years. But so far, scientific studies have not found conclusive evidence that drinking coffee in moderation is harmful to human health. Between 1970 and 1980, the results of studies in this area were generally negative.

Widespread reports have made people uneasy about the caffeine in their diets.

In the 90s, thanks to a more rigorous and precise testing process and more knowledge of other aspects such as alcohol consumption, exercise habits and smoking, these studies have been able to clear up some of the unresolved debates in previous studies. In particular, a lot of new knowledge about caffeine and health has been provided.

On October 27, 2017, the World Health Organization's International Agency for Research on Cancer (IARC) released a preliminary list of carcinogens, and caffeine was included in the list of three categories of carcinogens.

The adverse effects of drinking coffee are as follows:

1. Mental tension, caffeine helps to improve alertness, sensitivity, memory and concentration. However, drinking too much coffee will produce a stimulant similar to consuming the same dose, which can cause nervousness. For people with anxiety disorders, caffeine can worsen symptoms such as sweaty palms, heart palpitations, and tinnitus.

2. Aggravate high blood pressure, caffeine is often synthesized with other simple analgesics because of its analgesic effect, but long-term use of a large amount will increase blood pressure. Because caffeine can raise blood pressure, people at risk of high blood pressure should especially avoid drinking caffeinated beverages when work pressure is high.

The general coffee on the market (especially instant coffee) generally adds a lot of sugar, and drinking too much will lead to obesity. Of course, if you drink clear coffee (without any seasonings), you will not gain weight.

I think it's easy to get full when you eat something sweet.