ers went through earlier studies and reports on both energy drinks and sports drinks, which don't contain any stimulants. They note that energy drinks contain a jumble of ingredients -- including vitamins and herbal extracts -- with possible side effects that aren't always well understood. While there aren't many documented cases of harm directly linked to the beverages, stimulants can disturb the heart's rhythm and may lead to seizures in very rare cases, Benjamin said. Recently, she saw a 15-year-old boy with attention deficit hyperactivity disorder who came into the hospital with a seizure after having drunk two 24-ounce bottles of Mountain Dew, a soft drink that contains caffeine. The boy was already taking stimulant ADHD medication, and the extra caffeine in principle might have pushed him over the edge, according to Benjamin. "You just never know," she said. "It's definitely a concern." Earlier this year, Pediatrics published another review of the literature on energy drinks. In it, Florida pediatricians described cases of seizures, delusions, heart problems and kidney or liver damage in people who had drunk one or more non-alcoholic energy drinks -- including brands like Red Bull, Spike Shooter and Redline. While they acknowledged that such cases are very rare, and can't be conclusively linked to the drinks, they urged caution, especially in kids with medical conditions (see Reuters story of February 14, 2011). U.S. sales of non-alcoholic energy drinks are expected to hit $9 billion this year, with children and young adults accounting for half the market. Manufacturers claim their products will enhance both the week as the seven nuclear reactors that have been shuttered after the Japan nuclear emergency are widely expected to stay closed for good. Peakload prices for delivery in 2012 in bilateral over-the-counter trade rose around EUR2 a megawatt-hour to between EUR73.15/MWh and EUR73.35/MWh. On the Germany-based European Energy Exchange baseload for delivery in 2012 rose to EUR60.05/MWh, up around 1% on the day from EUR59.46/MWh. The 2012 baseload contract has gained nearly 13% since the March 11 earthquake and tsunami that triggered the nuclear disaster in Japan. In 2010, nuclear reactors accounted for around 23% of Germany's power production, making them the second-largest contributor to overall output behind lignite-fired power plants. The government said earlier Monday that it will end the use of nuclear energy by 2022 at the very latest. The country's seven oldest nuclear