First reason energy drinks aren’t good for people because energy drinks can cause insomnia. Insomnia is when the person cannot stay asleep or they person is having trouble going to sleep. Energy drink is one of the most common causes of intermittent and transient insomnia. It is also causes daytime sleepiness and a general feeling of being unwell . And that's one reason why energy drinks aren’t good for people.
The second reason energy drinks aren’t good for people because energy drinks can cause seizures.