Raynaud’s phenomenon can occur with episodes where blood vessels constrict and reduce blood flow to your extremities. Treatment can include medications to widen your blood vessels. Raynaud’s ...

Dawn phenomenon is an increase in blood sugar levels that takes place early in the morning in people with diabetes. If you have diabetes and wake up very thirsty, starving, cranky, and with an urgent ...

The Bell’s phenomenon, also called the palpebral-oculogyric reflex, refers to the movement of the eyeballs in an upward direction when the eyelids are forcefully closed. It was Charles Bell, a great ...