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After age 65, your body can't adjust to changes in air temperature--especially heat--as quickly as it did when you were younger. That puts you at risk for heat-related illnesses.

Two types of spiders found in the U.S. can cause illness in people. One type is the widow spider of which the black widow is the best known. The other type is the recluse. Read on to learn more.

The bite of a deer tick can pass on several diseases, including Lyme disease and Borrelia miyamotoi disease.

Children's mental health is as important as their physical health. Read on for helpful answers to common questions that can help you protect your child's mental health.

Thoracic outlet syndrome is a squeezing of nerves or blood vessels between the collarbone and first rib. Symptoms: arm pain, tingling, swelling, or color or temperature changes, often worse with overhead use. Most improve with physical therapy. Seek urgent care if an arm is cool, pale, or swollen.

We've come a long way in our understanding of HIV and AIDS. But there is still discrimination against people with HIV and AIDS. Learn what you can do to help.

Hyperbaric oxygen therapy (HBOT) is used to treat many conditions from severe burns to carbon monoxide poisoning. But like all medical procedures, it has some risks. Here's what you need to know about.

Achalasia is a disease that makes it hard to eat and drink normally. It affects your esophagus, which is the swallowing tube that connects the back of your throat to your stomach.

Parkinson disease is a movement disorder that can cause muscles to tighten and become rigid. It can make it hard to walk and engage in daily activities.