negative side effects of caffeine
1. Cardiovascular Complications: This is the first out of the negative effects of caffeine that people should not look down. Caffeinated coffee comes with side effects that could threaten life. Research shows that coffee has caffeine which can increase the risk of heart attack.
When consumed in moderate doses (up to 250 mg, or about two 6-oz cups of coffee or about four 12-oz colas), caffeine can help people feel more alert and less sleepy. Most individuals consuming moderate amounts will experience few, if any, negative side effects. Caffeine may increase heart rate, body temperature, blood flow to the skin & extremities, blood pressure, blood sugar levels, stomach acid secretion and production of urine (diuretic).