Before we debate on if ‘caffeine is good or bad’ let’s know what kind of drug caffeine is. Caffeine is a Central Nervous System Simulant. It is the world’s most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world. What caffeine does to body is just like any other simulant drug. A stimulant speeds up the body and brain. Stimulants, such as methamphetamines and cocaine make someone feel high and energized. When the effects of a wear off, the person will feel tired or sick.
Caffeine is a central nervous stimulant and can have some positive effects on the human body. Caffeine in low doses can improve performance in sports, increased alertness and reduction in fatigue results in potentially lifting a person’s mood. Coffee and tea also contain some antioxidants which have positive effects on heart health. The right amount of caffeine is real concern. Recommended level for drinking is 500mg / day, less for pregnant women & people with heart condition like elevated blood pressure. A cup of coffee has around 80mg to 100mg of caffeine.
Drugs are addictive & caffeine is no exception to it. Increased amounts & regular dose of caffeine leads to dependency due to increased tolerance. If a heavy user doesn’t get enough caffeine he experiences withdrawal symptoms like headache & fatigue.
Too much caffeine can produce restlessness, nausea, sleep difficulties, upset stomach, increased urine production causing dehydration and irregular heartbeats.
Conclusion : Any drug if used properly in proper portion may give great results even legal drugs can be proven fatal when used without proper precaution.