Health Capsules

Your daily rhythms are set less by habit and choice than by the natural light-dark cycle, which resets an internal clock deep in the brain. Morning sunlight and dim evenings keep sleep, mood, and metabolism in sync, while artificial light at night throws them off. Align your day with these light cues and you can sleep better and lower your risk of metabolic trouble.

BMI mislabels healthy people, fuels body image problems, and steers health policy in the wrong direction. The case here is that waist circumference and waist-to-height ratio predict real risks like heart disease and diabetes far better, because belly fat matters more than total weight. Measuring your waist instead gives you and your doctor a more honest, less stigmatizing read on your health.