Coffee, Energy Drinks, Caffeine Pills:

The most popular energy drink, Red Bull, contains caffeine 80 mg (250 ml) per caffeine. This amount is the same as 2 cups of coffee or 1 cup of tea, other energy drinks contains several times this amount. Because the caffeine content of energy drinks is not always displayed on the label, it is difficult to judge the content of can of energy beverage. Some people are sensitive to caffeine, experiencing anxiety, palpitation, irritability, difficulty sleeping, and indigestion. Because it is a stimulant, people with heart disease should avoid large amounts of caffeine. Red Bull's propaganda slogan in China says "Tired, sleepy, red Bull, Red Bull drinks are the main functional drink in China, Red Bull's drinks include caffeine Red Cow's drink

Caffeine is contained in coffee, tea, "energy" drinks, gel, NoDoze pill, and relatively new caffeine-containing water. Caffeine is complementary to NCAA, pro league, and international convention. Legal restrictions are usually 6 to 8 cups of coffee depending on weight exceeding the limit. The US Olympic Committee shows a good example that caffeine intake has some positive impact on adult athletes. These include improving endurance exercise capacity (such as triathlon), group sports (basketball, football, etc.), and even short-term sports. Some people think that caffeine is dehydrated because it is a diuretic (which can cause loss of water), but the effects of caffeine on hydration are extensively studied in the military, it is a myth I already know. Dehydration after ingestion of caffeine within regulatory limits is negligible