system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happens when someone consumes too many energy drinks or sodas, either in a short period (as in a day or few hours) or over a long span of time?

I've always wondered since it's traditional for me and my family to consume this stuff especially during the holidays, sodas more than energy drinks.
gpt
In both cases, the person can overdoes on Caffeine. This can be very serious. 

Drinking a lot over a short period of time It causes irregular heart rate, hallucination, breathing problems, and convulsions. If the person had a weak heart or an underlying heart condition, it could cause them to have a heart attack, and even death. 

The person would also ingest a large amount of sugar, supplements, and vitamins, which cause the body systems to go haywire and cause all sorts of issues. These are the greatest risk for long term consumption.