How long does it take for coffee to have side effects?

Side Effects of Coffee

Coffee is a popular drink that many people drink several cups a day. However, drinking too much coffee may cause some side effects. This article will look at the side effects of coffee and how often you drink it before these problems occur.

1. Effects of caffeine on the central nervous system

Caffeine is one of the main ingredients in coffee, which can stimulate the central nervous system and increase alertness. Moderate intake of caffeine can make people feel energetic and awake, but excessive intake may cause problems such as anxiety, restlessness and insomnia.

According to research, consuming more than 400 mg of caffeine per day (about the equivalent of 4 standard cups of American coffee) may increase the risk of anxiety and sleep disorders. However, not everyone is equally sensitive to caffeine, and some people may need less to produce similar effects.

2. Increase of adrenocortical hormone

Caffeine consumption increases the secretion of adrenocortical hormones, such as adrenaline and norepinephrine. These hormones increase heart rate, blood pressure, and blood sugar levels in response to the body's stress response.

However, long-term excessive intake of caffeine may lead to excessive secretion of adrenocortical hormone, which can cause a series of problems. For example, high blood pressure, arrhythmia and gastric ulcers are all related to excessive adrenocortical hormone.

3. Digestive system problems

Drinking coffee may stimulate stomach acid secretion and have an irritating effect on the digestive system. This can be a problem for some people.

If you already have digestive issues like stomach ulcers or esophageal reflux, drinking coffee may make your symptoms worse. Additionally, drinking coffee on an empty stomach may cause an upset stomach or indigestion.

4. Decreased bone density

High caffeine intake may lead to decreased bone density and increase the risk of osteoporosis because caffeine can interfere with calcium absorption and utilization.

While research findings are inconsistent, some studies suggest that consuming more than 400 mg of caffeine per day may be associated with an increased risk of osteoporosis. If you already have osteoporosis or other issues related to bone density, it may be a good idea to limit your coffee intake.

5. Withdrawal

Sudden cessation of long-term coffee drinking can cause withdrawal symptoms, which usually include headaches, fatigue, anxiety, and difficulty concentrating.

Everyone is more sensitive to withdrawal symptoms than everyone else, but these side effects usually wear off within a few days to two weeks. If you plan to reduce or stop drinking coffee, reduce your intake gradually to avoid severe withdrawal symptoms.

in conclusion

Overall, drinking coffee in moderation is safe for most people. Consuming up to about 400 mg of caffeine per day is unlikely to cause serious side effects.

However, excessive coffee consumption may cause side effects such as anxiety, insomnia, high blood pressure, and digestive issues. If you already have a health condition or are sensitive to caffeine, limiting your intake may be a wise choice.

The most important thing is to understand how your body reacts to coffee and tailor your intake to your individual circumstances. If you have any concerns or questions, seek advice from your doctor.