I usually drink a few energy drinks during a week, because it really helps my productivity, I can focus on tasks easily, even on those boring ones. I'm better in processing information too. I prefer it over coffee. Days without energy drinks are by me less productive.
Are there some downsides of drinking it regularly? Are there some chemical compounds that I should rather avoid? It usually contains caffeine, taurine, vitamin C, niacin, B6, B2. This constitution usually does not seem to be so unhealthy.
Caffeine is not necessary to explain, because it's amount is comparable with a cup of coffee, similarly taurine is in tea. There is usually a lot of sugar in energy drinks but I don't sweeten at all other foods and beverages. So, I'm interested if there is something special unhealthy that should be avoided.