High-caffeine energy drinks are being widely consumed by children and young people and could be storing up “a significant public health problem“ for the future, experts from the WHO have warned. Researchers found that many such drinks were being “aggressively“ marketed to children, who can be more susceptible to the potentially harmful effects of caffeine intoxication. Unlike tobacco and alcohol, energy drinks such as Red Bull and Monster are rarely restricted for sale to children. Health experts have warned before about possible dangers of the drinks. In a review of medical evidence, Dr Joao Breda of the WHO's Regional Office for Europe, and other researchers, said that “concerns in the scientific community regarding the potential adverse health effects“ of energy drinks were “broadly valid“. Caffeine intoxication can lead to heart palpitations, high BP, nausea and vomiting, convulsions, psychosis and in rare cases, death.