Insomnia
When it comes to coffee, the most common caffeine side effect that some people mention is insomnia.
While it can sound weird since most people end up drinking coffee in order to make the most of its staying-aware qualities, too much caffeine can lead to insomnia and a lack of restorative sleep.
Studies conducted have shown that a high caffeine intake can lead to subjects not being able to fall asleep as fast as usual, while also showing that older subjects end up sleeping less on average due to caffeine.
By comparison, those who have a moderate to low intake seem to not report the same type of effects, especially those who are known to be “good sleepers” and even those who are self-reported insomniacs.
It seems like if you have a high intake of caffeine, you can end up not being able to tell how much of a negative impact it has on your sleeping patterns.
When you take into consideration that the FDA-recommended maximum caffeine consumption for a healthy adult is 400 mg per day and that some energy drinks have around 505 mg per can and some energy shorts have 350 mg per serving, it is not hard to imagine why people can easily overdose on caffeine.
Do not forget that caffeine can be found in different types of beverages, not just coffee and energy drinks, and that it can take up to five hours to leave your system on average, with the low being one hour and the most being nine hours.
