Even though epidemiological evidence has been controversial regarding the optimal timing of physical activity for weight management, the hours of 7 a.m. to 9 a.m. appear to be the most favorable time of day to enhance the association between daily moderate to vigorous physical activity and obesity, according to a new analysis titled "The Diurnal Pattern of Moderate-to-Vigorous Physical Activity and Obesity: A Cross-Sectional Analysis", published in the journal Obesity.