Melbourne, Oct 2 : Almost 25 pct of people, who are on a gym regimen, exercise at levels that can be detrimental to their health, a new study has revealed.

The study that looked into the exercise patterns of gym-goers in a fitness centre in Melbourne found that 23 pct of them, exercising between six and 20 hours a week, are largely reliant on their physical fix.

The group called excessive exercisers undertook vigorous exercise for longer hours compared to their non-excessive counterparts.

Washington, Oct 2 : A new research has shown that leptin, a hormone largely responsible for regulating appetite control and energy metabolism, plays a key role in islet cell growth and insulin secretion.

The finding, unraveled by researchers at the Joslin Diabetes Center, brings in new avenues for studying leptin and its role in islet cell biology, which may lead to new treatments for diabetes.

Washington, Oct 2 : A new study has found that children have more problems initiating sleep than maintaining it.

The study, authored by Leonie Fricke-Oerkermann, PhD, of the University of Cologne in Germany has also revealed that parents underestimated their kids’ sleep problems, highlighting the necessity of having treatment options available to help a child overcome a sleep disorder.

Washington, Oct 1 : Adolescents who feel relaxed when first exposed to nicotine from cigarettes are the ones likely to get hooked, a new study has revealed.

The University of Massachusetts Medical School conducted the study to find why some adolescents who try smoking get hooked to it while others do not.