Mathieu Rees

Electrocardiograms (EKGs) help diagnose heart attacks and can accurately predict future ones. However, they are not particularly reliable tools for detecting previous heart attacks.

Medical professionals can usually collect samples very quickly. However, people may have to wait for the results.

Mantle cell lymphoma is a cancer that often goes through phases of remission and relapse. During remission, doctors will continue to monitor a person for signs of relapse.

Heel bursitis refers to inflammation of the bursae located at the back of the heel. Learn more about its symptoms and treatment options here.

Brain stem gliomas are a type of tumor that start in the glial cells in the brain stem. Learn more here.

Intrinsic reflex epilepsy is when someone develops seizures in response to a specific mental process or sensation. These processes include decision-making, spatial thinking, and feeling startled.

Heart rate variability typically decreases during stressful situations, although the heart rate increases. Managing stress levels can mean a more variable heart rate.

Transmyocardial revascularization is a procedure that uses lasers to improve blood flow in the arteries that feed the heart.

New-onset atrial fibrillation causes an irregular heartbeat in a person who has not experienced it before.

Cerebellar hypoplasia is a rare condition that affects the cerebellum, a small area of the brain that is extremely important for movement. The cerebellum is smaller than it should be in people with cerebellar hypoplasia.