First, avoid putting too much sugar.
Second, avoid high concentration.
Third, avoid smoking when drinking coffee.
Avoid putting too much sugar. Put some sugar when drinking coffee, which can make coffee taste better. But if you put too much sugar, it will make people listless and even feel very tired. There are two reasons: first, after caffeine enters the human body, it will consume some minerals in the body, which are indispensable in the process of transforming carbohydrates into glucose. Second, drinking coffee with too much sugar will stimulate islet cells in the pancreas to secrete a lot of insulin, and excessive insulin will reduce the glucose content in the blood. Once the blood sugar is too low, there will be symptoms of hypoglycemia such as palpitation, dizziness, weakness of limbs and drowsiness. In addition, it is not advisable to eat too much food with high sugar content when drinking coffee, otherwise the above phenomenon will also occur.
The second bogey concentration is too high. After drinking high-concentration coffee, adrenaline in the body suddenly increases, which leads to the acceleration of heartbeat frequency, obvious increase of blood pressure, and abnormal phenomena such as nervousness, anxiety, tinnitus and involuntary trembling of limbs. If you have arrhythmia, tachycardia, neurosis and other diseases, drinking strong coffee will promote or aggravate the original condition. People with coronary heart disease and hypertension can induce angina pectoris and cerebrovascular disease if they drink too much espresso. Generally speaking, the concentration of caffeine in each cup of coffee should not exceed 100 mg, and the daily consumption should not exceed two cups.
No smoking while drinking coffee. Studies have shown that caffeine, the main component of coffee, can easily mutate some tissues in the body and even lead to cancer cells under the action of mutagenic substances such as nicotine in cigarettes.