Many of us drink coffee and tea, or take other stimulants to improve energy levels and alertness. Caffeine in these drinks gives an initial rush of energy. Consuming several of these drinks a day can boost the heart rate and blood pressure (sometimes to the point of palpitations), dehydrate the body and prevent sleep. Among other energy boosters, a healthy diet, physical activity and a good sleep are recommended.

B vitamins in diet or supplements are essential for energy production and the metabolism of fats, carbohydrates, and protein. Vitamin B complex influences our energy level. The vitamin B complex consists of eight vitamins that have major roles in metabolic reactions, which convert food into energy, relieving fatigue and tiredness. Ginseng is an herbal tonic to help increase energy and reduce fatigue.