There are also aids that can help you concentrate. However, you must not forget that the biggest part of the work remains on you anyway.
Caffeine
Caffeine found in coffee, Kofola, Coca Cola, tea, cocoa, or chocolate (especially dark) improves perception, speeds up the flow of thoughts, reduces muscle fatigue, and stimulates the ability for higher performance. However, it only works short-term against fatigue as such. Warning: With frequent use, symptoms of restlessness, digestive disorders, insomnia, and withdrawal symptoms may appear - it is, after all, an addictive substance.
Sugar
It is often the most popular source of energy, yet it rather induces drowsiness. Instead of achieved energy, which lasts only briefly, you'll rather achieve ruined teeth, excess weight, or the already mentioned drowsiness.
Tea
A more natural way to gain concentration and energy. Whether it's herbal, black, or green tea, they always work. Popular and effective herbs include Ginkgo biloba, mate, and guarana. But various herbal blends for concentration are also sold. Many of these herbs also benefit overall health, improve memory, or provide greater well-being, which is an ideal combination in stressful situations.
Energy drinks
The easiest solution when you need to keep your head and hold off fatigue. However, excessive consumption of energy drinks is not healthy, partly because of the large amount of sugar, and partly because of the additives they contain. Nevertheless, they are very tasty and in times of need, they often pull us out of a bind.
Breaks
Regular breaks filled with a different type of activity than your work requires will benefit your body. You'll often get more done if you rest for a while or go for a walk outside than when you sit over your work for hours and hours and just because you need a moment to catch your breath, you can't come up with anything.
Maintaining good fitness and health
Do you sleep well every night? When we get a good night's sleep, we think better, we're full of energy. Sleep is often forgotten and its lack is "treated" with various dietary supplements.
Movement is a natural defense against fatigue. If you overcome yourself and force yourself to exercise, even if only for half an hour, your lost energy will return. Moreover, through the hormones released during exercise, you'll regain overall well-being of your body.