Effects of high-intensity exercise on leptin and testosterone concentrations in well-trained males.

Objective: A number of investigations have examined the effect of exercise on leptin concentrations, because leptin is associated with obesity, satiety, and reproductive function. High-intensity exercise is known to increase testosterone, an inhibitor of leptin. The objective of the study was to determine whether the leptin responses to a progressive, intermittent exercise protocol were related to serum testosterone concentrations.

Residential adolescent substance abuse treatment: recommendations for collaboration between school health and substance abuse treatment personnel.

Thousands of youth participate in residential substance abuse treatment each year. After completing treatment, many of these youth return to school. This study analyzed the process of substance abuse treatment at the Generations Youth Program, and identified opportunities for collaboration with school health personnel.