When exposed to cold water, the body constricts blood vessels (a process known as vasoconstriction) to conserve heat. Once out of the cold shower, the blood vessels dilate (vasodilation), allowing ...

A new study compares 17 acute migraine medications. Find out how the newer, more expensive drugs stack up to the older ...

Using a new plethysmographic technique to measure peripheral arterial tone (PAT), we report here that REM sleep in humans is associated with considerable peripheral vasoconstriction. The apparatus ...

Maximal vasodilation can increase cutaneous blood flow to 3000 ml/minute (average flow is 300-500 ml/minute). 2. Vasoconstriction - decreases blood flow to periphery, decreases heat loss. Maximal ...

You have heard of ice baths to help your sore muscles or recover from a sports injury. But what are contrast baths, and how ...

Ophthalmology Times - ophthalmology news, articles, and events in a timely and accurate manner for members of the ophthalmic ...

The differential diagnosis includes reversible cerebral vasoconstriction syndrome, intracranial atherosclerosis, intravascular lymphoma, moyamoya disease and syndrome, secondary cerebral ...

High blood pressure is one of the most significant risk factors for cardiovascular disease. Dr Deborah Lee of Dr Fox Online ...

Vasopressin is a hormone involved in metabolism, reproduction, and homeostasis. Learn about natural production and synthetic ...

New research from the United Kingdom finds that an older class of migraine drugs called triptans is often better than newer ...

Reversible cerebral vasoconstriction syndrome (RCVS) is a complex neurological disorder characterized by severe thunderclap headaches and transient vasoconstriction of the cerebral arteries. The ...