HEALTH NEWS * Nonprescription magnesium use associated with reduced heart failure risk * Scientists cast new light on how fasting impacts the immune system * New study highlights strong anti-cancer properties of soybeans * New Study Reveals Just 10 Days of Inactivity Can Harm Your Brain * These Machines at Your Gym Can Help Prevent Brain Shrinkage Linked to Dementia * Obesity severity tied to increased risk across 16 common conditions