Early adolescents with cognitive disengagement syndrome report significant sleep disturbance and sleep-related impairment.

Abnormal stress test results may suggest an underlying heart condition, such as coronary artery disease, or a blockage in the arteries supplying blood to the heart. Failing a stress test means you can ...

A nuclear stress test, also called myocardial perfusion imaging (MPI) or a thallium stress test, uses a radioactive tracer to show how blood flows through your heart muscles during exercise and at ...

Staying awake for 24 hours can cause symptoms like anxiety, impaired judgment, and irritability. Long-term sleep deprivation increases your risk of conditions like heart disease and depression. Having ...