Advantages and disadvantages of having a cup of American coffee every morning

The benefits of a cup of American coffee every morning generally include relieving thirst, improving learning efficiency, and boosting spirit. The disadvantages include causing insomnia, yellowing of teeth, and stimulating gastric mucosa.
1. Benefits:
1. Relieve thirst: After waking up in the morning, thirst usually occurs because there is no water supplement overnight. Because coffee contains more water, drinking coffee every morning can relieve thirst.
2. Improve learning efficiency: Coffee contains more energy and calories. After drinking coffee, it can improve mental state and improve learning efficiency.
3. Stimulate the spirit: Because coffee contains more caffeine, caffeine can excite the nerves girl butt , increase the excitement of the sympathetic nerves, make people energetic, and have an uplifting effect.
2. Disadvantages:
1. Insomnia: Because coffee contains caffeine, drinking a moderate amount of coffee can refresh the mind. Drinking too much coffee can cause patients to experience insomnia symptoms.
2. Yellowing teeth: If you do not clean your mouth in time after drinking coffee clitoral vibrator , resulting in coffee remaining in your mouth horse dildo chastity device , it will cause pigmentation and cause yellowing of your teeth.
3. Stimulate gastric mucosa: Coffee contains tannic acid substances, which are irritating substances. If you consume too much coffee, it will stimulate the gastric mucosa and damage the gastric mucosa.
In addition to the above benefits, it also has the benefit of alleviating fatigue; in addition to the above disadvantages, excessive drinking can also easily cause calcium deficiency.