Pregnant women, nursing mothers, children under 12 years old or people with heart disease should not drink coffee to avoid harm to health.
* Pregnant women:
A 2020 review in the British Journal of Medicine concluded there is no safe level of caffeine consumption during pregnancy. In addition, caffeine can inhibit the growth of the fetus, make the baby less than normal, even cause miscarriage, premature birth. Therefore, pregnant women should not consume this beverage.
According to Eat This, because caffeine is a stimulant and diuretic, women who are breastfeeding are at increased risk of dehydration if they drink coffee. In addition, children with weak metabolic and excretory functions of the kidneys, if breastfed with caffeine, can be restless, irritable, and have trouble sleeping.
* People with heart disease:
Caffeine in coffee can temporarily increase blood pressure and heart rate, causing cardiac dysfunction. Therefore, people with heart problems, if they drink a lot of coffee, will make the disease worse and difficult to control.
* People with stomach pain:
The acid in coffee can irritate the stomach and small intestine lining. In particular, drinking coffee on an empty stomach easily stimulates the stomach to increase acid secretion. The diuretic properties of coffee also make you have to go to the bathroom more often, causing dehydration, which is not beneficial for people with stomach pain.
* Sleep disorders:
According to Medical News Today, many people have a habit of drinking coffee after a bad night’s sleep to stay awake. However, this further disrupts the sleep cycle. These people should avoid consuming caffeine at least 6 hours before bedtime to avoid affecting sleep quality. Instead, they should switch to herbal teas that promote deeper sleep.
* People who are often stressed:
As a stimulant, caffeine can worsen anxiety in some people. If you are constantly stressed or panicking, you should consider avoiding or reducing your coffee intake.
* Get diarrhea:
Having diuretic properties, easy to cause dehydration, caffeine in coffee is not good for people with diarrhea. It also stimulates peristalsis, which aggravates the condition.
* Children under 12 years old:
Caffeine can cause restlessness and anxiety, which is especially aggravated in children. Too much caffeine can lead to increased heart rate, anxiety, difficulty concentrating, and stomach upset. In addition, coffee is quite acidic, which can damage tooth enamel and increase the risk of tooth decay.
* Gastroesophageal reflux disease (GERD):
Caffeine can relax the lower esophageal sphincter. This is the valve between the esophagus and stomach, which normally prevents food and stomach acid from backing up. So, if this sphincter is relaxed, stomach acid can enter the esophagus, leading to unpleasant GERD symptoms.