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To diagnose a circadian rhythm disorder, your doctor may review your medical history; ask about your symptoms, sleep patterns, and environment; do a physical exam; and order diagnostic tests.

You may have an increased risk for a pleural disorder because of your age, your family history and genetics, your lifestyle habits, medicines you take, other medical conditions, and your sex.

There are many different types of vasculitis that affect different blood vessels throughout the body.

Circadian rhythm disorders occur when your sleep-wake cycle is out of sync with your environment. Many factors, both internal and external, can cause you to have problems sleeping and raise your risk for a circadian rhythm disorder.

Alpha-1 antitrypsin (AAT) deficiency happens when you do not make enough AAT protein. The AAT protein is made in your liver. This protein enters your blood and protects your organs, including the lungs, from damage. For example, your immune system is your body’s defense against bacteria and viruses but if it is overactive, it can damage your body while fighting diseases. The AAT protein prevents you from having too much inflammation in your lungs. Without enough AAT protein, your immune system may damage your lungs and lead to lung disease.

You may have a higher risk of insomnia because of your age, family history and genetics, environment or occupation (work), lifestyle, stress or worrying about sleep, or your sex.

The main symptom of insomnia is trouble falling or staying asleep, even if you have enough time and the right conditions for good sleep. Over time, untreated insomnia may raise your risk of certain health problems or workplace or road accidents.

Metabolic syndrome is the name for a group of risk factors that raises your risk for heart disease and other health problems, such as diabetes and stroke. The term "metabolic" refers to the biochemical processes involved in the body's normal functioning.

Peripheral artery disease is more common in blacks than any other racial or ethnic group. The major risk factors for peripheral artery disease include smoking, older age, and diseases and conditions such as diabetes, high blood pressure, high blood cholesterol, coronary heart disease, stroke, and metabolic syndrome.

The major types of stroke are ischemic (when an artery to the brain becomes blocked) and hemorrhagic (when an artery in the brain leaks blood or breaks open).