Caffeine is a natural stimulant most found in tea, coffee, and cacao plants. It works by stimulating the brain and central nervous system, helping you stay alert and prevent the onset of tiredness. Caffeine is also a diuretic, meaning it helps to expel water from your body via urination. Histo …

Amino acids are the building blocks of protein, which helps to repair and build muscle tissue. Amino acids can be found naturally in foods like meats, dairy, and legumes, or they can be taken as supplements. Amino acid supplements are popular among athletes and bodybuilders because they can he …