VNS therapy uses an implanted device to stimulate the vagus nerve, helping manage epilepsy and depression. Here's how it works, its risks, and what to expect.
Hair loss has many possible causes, from genetics and stress to nutritional gaps and medications. Learn what's behind shedding and how to identify the cause.
Aircraft carriers are massive floating airbases that project military power across oceans. Here's how they launch planes, stay at sea for months, and operate like a small city.
Women's lacrosse has far fewer contact rules than the men's game, but concussion rates are still high. Here's why helmets aren't required and what the research says.