Health

9 Possible Side Effects of Excessive Caffeine

Tea and coffee are two incredible beverages with a lot of caffeine content.

Most of these beverages, however, contain caffeine, a substance that may boost your mood, metabolism, physical and mental performance (123).

Several studies reveal that caffeine is safe for most people especially when consumed in low-to-moderate amounts (4).

But, high intake of caffeine may have some unpleasant side effects.

Studies also show that your tolerance is dependent on your gene. That is to say, some people can consume much more caffeine than others without experiencing any side effect (56).

Furthermore, individuals who are not used to it may experience unpleasant side effects after consuming what is considered a moderate dose (47).

That is the whole essence of this article, to highlight 9 possible side effects of excessive caffeine.

1. Excessive caffeine Promotes Insomnia

Most people choose to take caffeine in order to stay awake.

But too much of it can make it difficult for you to get enough restorative sleep.

Several studies show that a higher caffeine intake appears to increase the amount of time it takes to fall asleep. It may as well decrease your total sleeping time, especially in the aged (89).

Nevertheless, a low or moderate amount of caffeine does not seem to affect sleep so much in people who are considered good sleepers or those with self-reported insomnia (10).

In most cases, you may not realize that excessive caffeine is interfering with your sleep, especially if you estimate the amount you are taking in.

As mentioned earlier, tea and coffee are the two most concentrated source of caffeine, although it can also be found in cocoa, soda, energy drink and several types of medication.

It is worthy of note, that, the amount of caffeine you consume without affecting your sleep quality will depend on your genetic makeup and other factors.

Also, note that caffeine consumed later in the day may interfere with your sleep because its effects may take several hours to wear off.

Studies show that caffeine can remain in your system for an average of five hours, but the time period may range from one and a half hours to nine hours, depending on the individual (11).

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