Energy Stimulants

Energy stimulants help combat fatigue, increase physical endurance and strength, and influence mood. One of the main representatives of this category is caffeine. It acts on the central nervous system (CNS) by increasing concentration, alertness, mental focus, and is not only used by athletes but also by students, pupils, and workers. Moreover, caffeine gently elevates mood and allows muscles to receive more oxygen, thus increasing endurance and reducing fatigue. Caffeine accelerates basal metabolism and increases the metabolism of fatty acids, thereby preserving muscle glycogen stores. The longer it is taken, the more resistant the body becomes, requiring larger quantities. It enters the system and bloodstream very quickly, making it more suitable for short strength training, explosiveness, or quick awakening. Excessive caffeine intake can have negative consequences: insomnia, tremors, restlessness, depression, headaches, digestive problems. Caffeine is also a strong diuretic, so there is a risk of dehydration. As it accelerates heart rate and raises blood pressure, it is not recommended for individuals with high blood pressure.

Guarana is the second most commonly used stimulant after caffeine. The active substance guaranine has effects identical to caffeine: it increases concentration, alertness, slightly elevates mood, endurance, reduces fatigue, and accelerates metabolism. The difference is that it is absorbed more slowly into the bloodstream, resulting in a more even, pleasant feeling and a longer-lasting effect. It is more suitable for studying, longer activities like running, cycling, walking, long drives, etc.