Caffeine

The most typical sources of caffeine are dark chocolate, tea, and coffee. There isn't much of a need to take it as a supplement when you can get it from these sources, even though it is possible to do so.

You will feel less tired and more alert thanks to the stimulation of your brain and central nervous system. Caffeine can increase your energy levels and enhance your memory, response speeds, and overall brain function, according to research. Although the quantity of caffeine in one cup of coffee varies, it typically ranges from 50 to 400 mg. Single doses of 200–400 mg per day are often regarded as safe for most people and enough to benefit health. However, consuming too much caffeine can have negative effects, including anxiety, nausea, and difficulty falling asleep.