Archive for June, 2015
An hour of physical activity every day can make a big difference in the health of teenagers, but a recent study discovered that short bursts of high-intensity activity may lead to a better outcome than moderate exercise.
This was discovered by a group of scientists from the University of Exeter in the UK, when they looked into the health stats of 19 teenagers who were made to drink milkshake with high fat in the morning and during lunch. The adolescents engaged in varying exercise routines ranging from rest phase to moderate exercise to high-intensity workouts.
Results showed that high-intensity exercise routines led to better blood sugar level, lipid metabolism, and blood pressure. “The intensity of accumulated exercise may therefore have important implications for health outcomes in youth,” the researchers said in a news item. The study proves essential in understanding the impact of high-intensity activity in kids and teens. “Children and adolescents tend to perform brief bouts of exercise. This study shows that the intensity of this pattern of exercise is important, with high-intensity providing superior health benefits than moderate-intensity exercise,” according to study senior author Dr. Alan Barker.
The complete results and details of the research are reported in the journal Metabolism: Clinical and Experimental.
As more states welcome medical marijuana use, a recent study discovers that this rise in accepting cannabis for medical treatment does not lead to more teens getting high.
A group of researchers from Columbia University Medical Center in New York investigated more than 1 million records of teenagers spanning 24 years worth of data from a nationwide study to determine a potential link between legalization of medical marijuana in U.S. states and teenage marijuana use. “Our findings provide the strongest evidence to date that marijuana use by teenagers does not increase after a state legalises medical marijuana,” said study lead author Dr. Deborah Hasin via a news release. Surprisingly, states that did not legalize medical marijuana were found to have higher rates of teen marijuana use. “Rather, up to now, in the states that passed medical marijuana laws, adolescent marijuana use was already higher than in other states,” Hasin added.
Dr. Kevin Hill from Massachusetts’ McLean Hospital alcohol and drug abuse division wrote a commentary accompanying the study, which was published in the Lancet Psychiatry journal. “The growing body of research that includes this study suggests that medical marijuana laws do not increase adolescent use, and future decisions that states make about whether or not to enact medical marijuana laws should be at least partly guided by this evidence,” Hill said.
Teenagers are undergoing several physiological developments, but a recent study showed that incorrect habits may disrupt the normal changes in them.
A comprehensive study by researchers of the University of California, San Diego (UCSD) revealed how alcohol consumption can affect the brain development in adolescents. Study lead author Susan Tapert said that the team’s study is one of the largest of its kind to investigate the effect of alcohol on teenage development. “This study was a little bit larger than previous studies since it started out with 130 adolescents before they had tried any alcohol and followed them over several years,” Tapert said in a news item.
Effects of alcohol were imminent in the way teenage girls were doing in school. “For girls who had been engaging in heavy drinking during adolescence, it looks like they’re performing more poorly on tests of spatial functioning, which links to mathematics, engineering kinds of functions,” Tapert said. Meanwhile, male teens may find difficulty focusing on things when they drink alcohol. “For boys who engaged in binge drinking during adolescence, we see poor performance on tests of attention — so being able to focus on something that might be somewhat boring, for a sustained period of time,” Tapert added.
The reason behind this, according to the study proponents, is the ongoing set of changes in teenage bodies. “Adolescent brains are still developing even into their early 20s, and alcohol can harm how the brain develops,” the study lead author expressed.
Details of the study were published in the Journal of Studies on Alcohol and Drugs.