Too much caffeine can overwhelm the central nervous system and cause unwanted symptoms. In addition to mild symptoms such as caffeine headaches and frequent urination, too much of any caffeinated beverage can cause more serious symptoms as well.
Some potentially life-threatening symptoms associated with drinking more caffeine than your body can handle include:
- Lethargy
- Trouble breathing
- Vomiting blood
- Tremors
- Abnormal heart rhythm
- Coma
While serious symptoms like these are rare, they are becoming more common thanks to the continued popularity of energy drinks that contain much more caffeine than the body is designed to handle at once. If you experience any of the above symptoms after taking a caffeine pill or drinking coffee or energy drinks, get medical attention as soon as possible.
For most people, drinking too much caffeine harms the body in subtler ways. For example, caffeine is a diuretic. This means that it can cause your body to lose more water than it normally would. As a result, exorbitant caffeine consumption can lead to dehydration and all the problems that come with it.
Another problem associated with excessive caffeine use is calcium absorption interference. Since calcium is important for bone health, excessive caffeine intake could potentially lead to weaker bones.
Caffeine is also known to disrupt regular sleeping patterns. This becomes even more likely if you consume caffeine late in the afternoon or right before you go to sleep. Since it is a stimulant, caffeine can make it very challenging to get quality sleep at night. In addition to making it harder to fall asleep initially, caffeine can prevent your body from cycling through the normal stages of sleep.
As if all of that weren’t enough, coffee addiction has also been linked to increased blood pressure. High blood pressure is one of the risk factors associated with heart disease, so it’s important to try to keep it in the normal range. Cutting back on your caffeine intake is one way to potentially lower your blood pressure and take better care of your heart.