2. A person who drinks five or more cups of coffee a day is twice as likely to suffer from heart disease as a non-drinker, and the longer he is addicted to coffee, the more he drinks, and the greater the possibility of heart disease.
3. People who drink coffee for a long time, regardless of their age and obesity, will reduce the bone mineral density of their hips and spine, and the degree of reduction is related to the duration of the habit and the amount of drinking.
4. Caffeine can be precipitated into fetal tissues (mainly liver and brain) through pregnant women's pancreas. If pregnant women are addicted to coffee, the chances of diabetes will increase after birth.
5, and drinking coffee will make the brain highly excited, at the same time stimulate blood vessel dilation, accelerate blood circulation, and increase the burden on the heart.
Drinking instant coffee often has carcinogenic potential.
The acrylamide content of instant coffee that people like is 0.36 mg/kg, barley tea is 0.51mg/kg, and corn tea is 0.27 mg/kg. Other drinks, such as barley tea and corn tea, which are included in the "blacklist" also have such cancer risk for the same reason.