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Science News Archive March 2015 - Page 30


Page 30 of 38

Teenage TV audiences and energy drink advertisements

A new study published in the Journal of Nutrition Education and Behavior found that nearly half of energy drink advertisements aired on networks with themes likely to appeal to adolescents. The study highlights the potential dangers of energy drink consumption among teenagers, particularly due to high caffeine content.

SourceElsevier Health Sciences·JournalJournal of Nutrition Education and Behavior·DateMar 6, 2015

Popular antioxidant likely ineffective, study finds

A recent study by McGill University researchers has found that ubiquinone, a widely believed antioxidant, is unlikely to provide benefits for cell protection. The study used mice with controlled ubiquinone biosynthesis levels and discovered no signs of oxidative damage despite the loss of the substance.

SourceMcGill University·JournalNature Communications·DateMar 6, 2015

Feeling sleepy? Might be the melatonin

Researchers found that zebrafish larvae with a mutation unable to produce melatonin slept half as long as normal fish. When the mutation was 'cured' by killing pineal gland cells, the fish returned to a normal sleep pattern. The study suggests naturally occurring melatonin plays an important role in regulating sleep.

Endocrine disruptors cause fatty liver

A new study presents evidence that brief exposure to endocrine-disrupting chemicals in infancy can lead to fatty liver disease in adulthood. The researchers found that bisphenol A (BPA) and tributyltin caused liver damage consistent with human nonalcoholic hepatic steatosis, and altered gene expression patterns that may drive obesity.

Irregular sleeping pattern may affect how teens eat

New research suggests that day-to-day variations in sleep duration, rather than overall sleep duration, can impact food intake in teenagers. The study found that teens who slept more or less on any given night consumed an average of 201 more calories per day, with higher rates of nighttime snacking and increased carbohydrate consumption.

SourceAmerican Heart Association·JournalCirculation·DateMar 5, 2015