Caffeine increases alertness by blocking the adenosine that makes you tired. But if you have big doses of it every day, it can lead to anxiety and nervousness. Coffee is a trigger for the release of adrenaline that may affect your behavior. If you notice that you’ve become too nervous, it is a good idea to try to control your consumption of caffeine.
3. You’ve started experiencing insomnia.
Caffeine makes you stay awake, but at the same time, it can affect your sleep. Researchers have shown that a high coffee intake can increase the amount of time you need to fall asleep. You literally sleep less and become more tired during the day.
2. You have a rapid heart rate and experience fatigue.
The rapid heart rate effect doesn’t appear in everyone, but it’s still pretty common. It was proven in young people, who had high doses of coffee, that caffeine can increase your pulse. Drinking coffee is not recommended for those people who have problems with blood pressure and with their heart.
1. Your metabolism speeds up and you become addicted.
Caffeine is a fat-burning supplement.
Studies have shown that it boosts your metabolism by 3-11%. However, it is important to be careful, because some people are intolerant to coffee and the negative effects are much worse than the positive. The problem is that you can become addicted to coffee and stop drinking enough water — which your body actually needs.
