Cons of Caffeine
Anxiety and Jitters

One of the main cons of caffeine is that it can cause anxiety and jitters. This is because caffeine is a stimulant, and it can increase your heart rate. If you have anxiety or are sensitive to caffeine, you may want to avoid it. If you drink too much coffee or soda, you may start to feel anxious or agitated. You may also experience heart palpitations and shaky hands.
Dehydration

Another con of caffeine is that it can cause dehydration. Caffeine is a diuretic, which means it makes you urinate more frequently. This can lead to dehydration if you’re not drinking enough fluids. When you’re dehydrated, your body doesn’t have enough water to function properly. This can lead to fatigue, headaches, and dizziness. So if you’re going to consume caffeine, be sure to drink plenty of water throughout the day.
Stomach Issues

Caffeine can also cause stomach issues like heartburn and indigestion. This is because caffeine relaxes the lower esophageal sphincter (LES). The LES is a muscle that separates the stomach from the esophagus. When it’s relaxed, acid from the stomach can reflux back up into the esophagus, which can cause heartburn and indigestion. So if you have GERD or are sensitive to caffeine in any way, you may want to avoid it.
Insomnia

Another downside of caffeine is that it can interfere with sleep. If you drink caffeinated beverages late in the day, they can keep you from getting a good night’s rest. Caffeine has a long half-life, which means that it stays in your system for a while. It can take up to eight hours for caffeine to be eliminated entirely from your body. This means that if you drink coffee or tea in the evening, it can keep you awake longer when trying to go to sleep.
Addictive

Maybe the biggest downside is it’s possible to develop a dependence on caffeine. This means that if you suddenly stop consuming caffeine, you may experience withdrawal symptoms like headaches, irritability, and fatigue. Being dependent on caffeine isn’t healthy and can be challenging to break free from.
Conclusion
So, is caffeine good or bad for you? Overall, caffeine has both positive and negative effects on the body. The answer really depends on how much caffeine you’re consuming and how it affects your individual body. Suppose you’re experiencing negative side effects from caffeine. In that case, it’s probably best to cut back or try to wean yourself off of it altogether. However, if you’re enjoying all the benefits that caffeine has to offer and it’s not causing any problems for you, then go ahead and keep drinking!