Necrotizing colitis (NC) is a serious health problem. It happens when part of your colon dies. This is often because of colon cancer.

Necrotizing pancreatitis (NP) is a health problem in which part of your pancreas dies. This is because of inflammation or injury. If the dead tissue gets infected, it can cause serious issues.

Short bowel syndrome is a group of problems. They happen to people who have had a large part of their small intestine removed.

Collagenous colitis (CC) is a condition that affects your large intestine. It leads to episodes of watery diarrhea and belly pain.

Lymphocytic colitis is a health problem that causes inflammation of your large intestine. It causes episodes of watery diarrhea and belly pain.

Cardiac tamponade happens when extra fluid builds up in the space around the heart. This fluid puts pressure on the heart and prevents it from pumping well.

Most adults need 7 to 8 hours of sleep each night. Sleep deprivation means you're not getting enough sleep.

Bicuspid aortic valve is a type of abnormality in the aortic valve in the heart. In bicuspid aortic valve, the valve has only 2 small parts, called leaflets, instead of the normal 3. This condition is present from birth. It often occurs with other heart defects.

In this condition, there is too little amniotic fluid around your baby during pregnancy. It occurs in only about 4% of pregnancies.

A pineal tumor is a tumor of the pineal gland in your brain. This gland secretes a substance called melatonin that affects your sleep-wake cycles. These are very rare tumors. They happen most often to children and adults younger than 40.