Is this just hype? Thanks to a clever marketing campaign, people have gone to extraordinary lengths to get hold of Prime drinks — but some schools are now banning them.
How an energy drink took over UK schools
Incandescent: One teacher said "incessant chatter" about Prime was disrupting lessons. Glossary
Vietnam - A Southeast Asian country with a population of nearly 100 million.
Caffeine - A drug that increases the activity of the brain and nervous system. It is found in many drinks, such as tea, coffee and soft drinks, as well as energy drinks, which have large amounts of caffeine.
Cardiac - Relating to the heart.
Paediatrics - The branch of medicine dealing with children and children's illnesses.
Lethargic - A lack of energy or sluggish.