A new study suggests that people with good "immune resilience" – the ability to stay healthy and bounce back after infections like the flu – have a 15-year survival advantage over those whose ...

Hypernatremia is when there's too much sodium and not enough water in your blood. Sodium is one of the electrolytes in your body, found mostly in your blood. It's important for many body functions.

Cancer screenings are essential for prevention, so it's important to follow guidelines and understand what average risk means ...

Join a free webinar – live or on demand – to hear from leading medical experts on a variety of health conditions and topics. WebMD has teamed with specialty physicians and researchers who ...

Many parents can’t help but wonder if their children are growing and developing at the right pace. Sometimes common milestones can be a helpful tool. But, remember that all children are ...

After childbirth, you're mostly focused on caring for your newborn. However, health problems can arise in the following weeks and months. Many mothers are not aware of the warning signs.

What Is a Fungal Nail Infection? A fungal nail infection is a common condition that can leave you with brittle, discolored nails, usually on your toes. Its formal name is onychomycosis, and it’s ...

Found a stray pill in your medicine cabinet? Have a loved one who mixed up a couple of their meds by mistake? There are plenty of reasons you might wonder, “What pill is this?” WebMD’s Pill ...

Testing your blood sugar is easy, even if you haven't done it before. You'll need the following things-- the test strips and the meter, lancing device and the lancet, bandages, alcohol swabs, and ...

Bruises are so common that you probably don’t think twice when you see a small black-and-blue mark on your shin or forearm. A bruise is a sign that you’ve been injured, but it’s usually not ...

When you have to pee, you probably don’t give a second thought to getting to the bathroom. But if you have problems with peeing -- pain, leaks, having to go more often, or not being able to go ...

Nail fungus, or onychomycosis, is a condition that occurs when a microscopic fungus enters either a fingernail or toenail. Fungal infections occur in toenails more often than in fingernails.