People at high risk for developing HIV can now take a medication to help prevent the disease. But to get the greatest protection from this medication, strict conditions must be followed.

Sleep apnea has been linked to problems with blood flow. As healthy blood flow is crucial to many functions of the body, including the five senses, it's possible that sleep apnea could play a part in damage to our senses.

Most parents try to start their children's day with a healthy breakfast. Yet one of the most popular breakfast foods is often packed full of sugar — sometimes as much as three Chips Ahoy! cookies.

Vaccines have prevented millions of illnesses, yet some uneasiness about their safety persists for some parents. One of the biggest concerns has been shot down again.

People from around the world will be flocking to Brazil this summer for the World Cup. But a new study has warned that soccer fans should be aware of the mosquito-borne illness dengue fever.

For many, it doesn't get much better than biting into a hot, juicy hamburger! But for patients in the latest E. coli outbreak, a meal of ground beef might have lead to an unpleasant illness.

The foods that a woman eats during pregnancy can have a huge impact on her baby's development, both before and after birth. The quality of air that a pregnant woman breathes may be equally important to her baby's health.

People can experience shortness of breath at high altitudes or after intense exercise. But shortness of breath also can be a sign of an underlying health issue with serious consequences.

Officials have been monitoring the situation since the first case of MERS was reported in the US earlier in May. Now, a close contact of this patient has tested positive for the virus.

Inflammatory bowel diseases are serious conditions on their own. But they also can lead to life-threatening complications that may extend to organs beyond the digestive system — even to the heart.