Thinkof it like a car. If you slam on the gas and take off at high speed from a dead stop every time and go 100mph (energy drink), your engine (heart) won't last very long. If you gradually accelerate up to your desired speed (exercise) your engine (heart) will last a A21-year old university student developed heart failure after "excessive" consumption of energy drinks, a new report suggests. For two years, the man drank four 500ml energy drinks a day Theanswer is yes. Energy drinks contain high levels of caffeine and other stimulants that can cause our heart rate to increase. In fact, studies have shown that consuming just one energy drink can cause a significant increase in heart rate and blood pressure. While this may not be a problem for most people, it can be dangerous for Usingan electrocardiogram to record blood pressure and the way that the heart beats, researchers documented measurements every 30 minutes for four hours Formost people, the occasional energy drink most likely will not be harmful, said Bethany Doerfler, a dietitian at Northwestern Medicine. But they pose significant risks to people with heart conditions, who should avoid these beverages. Loaded 0%. Their high caffeine content can stress the heart. Energy drinks also contain other stimulating wnVcf.