Self-tracking your sleep, steps, and stress can offer real insights, but the evidence on whether it actually improves health is more complicated than your fitness app suggests.
Liquid lecithin works as an emulsifier in food, supports heart health, and may help breastfeeding mothers — here's what you should know before using it.
A clear look at what actually happens in the operating room, from pre-surgery safety checks and how anesthesia affects your body to waking up and leaving recovery.