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Youth workers say cuts to early-intervention services, the closure of youth centres and an increase in school exclusions have all contributed to the rise in violence among young people.

"Our results suggest that, in young adults, good metabolic health and adequate choline contribute to neuronal health, laying the groundwork for healthy aging," says Jessica Judd, co-author of the study.

The new research suggests that long-term, untreated sleep apnea may contribute to a higher risk of Parkinson's.

"Be it in the army, civil protection, civil service or voluntary firefighters, the idea is for every young person to contribute to the collective wellbeing," she said.

Investigators also found packaging foam at the site which they said was highly flammable and could have contributed to the quick progression of the blaze.