This is the 5848th most frequent Swedish word.
hyper
"Hyper" in Swedish means "super" or "very" as an intensifier.
Here, 'hyper' is used as an adjective describing someone's overly energetic state or mood.
Jag är helt hyper idag.
I'm feeling completely hyper today.
In this sentence, 'hyper' refers to the excited and energetically chaotic behavior exhibited by children after sugar consumption.
Barnen blir ofta hyper när de har ätit mycket socker.
Children often become hyper after eating lots of sugar.
This usage contrasts 'hyper' with 'excited,' suggesting that while the person is animated, they haven't reached the level of frantic energy implied by 'hyper.'