Vasoconstriction limits blood circulation. This happens because normal blood flow is needed to carry oxygen, nutrients, and infection-fighting immune cells throughout the body.
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In some cases, Raynaud’s phenomenon may increase the risk of skin infections and slow wound healing in the affected areas. This condition isn’t harmful, but it can be uncomfortable. This may happen to people who work outside in colder regions or who spend a lot of time on an ice rink, such as ice skaters, hockey players, and Zamboni drivers. It can be triggered by being in the cold too often. Raynaud’s phenomenon can also affect the nose, lips, ears, and nipples. This limits how much blood can reach these outer areas. In this condition, the small arteries that supply blood to these areas spasm or narrow. Raynaud’s phenomenon causes some areas of the body, such as the fingers and toes, to feel cold or numb. Read more on what to do for signs of a stroke and recognizing signs of stroke unique to women. numbness or weakness on one side of the face and body.Symptoms of a cerebral vasospasm stroke include: This cuts off the supply of blood and oxygen to a part of the brain. The blood vessel spasms or narrows to try to save blood. This may happen after there’s bleeding in the brain due to a blood vessel rupture or surgery. Vasoconstriction in the brain or cerebral vasospasm can lead to a stroke or a strokelike injury. This can lead to health problems depending on where this happens and for how long. Some health conditions and medications can cause abnormal vasoconstriction. Rare and serious health conditions with vasoconstriction Some health conditions and drugs can cause too much vasoconstriction or make it happen in areas that it shouldn’t, such as parts of the brain. Chronic high blood pressure can increase your risk of heart disease and stroke. In comparison, vasodilation is like gulping a drink easily and quickly through a wide straw.Ībnormal vasoconstriction may cause or worsen high blood pressure. It takes more suction force to take a sip. Think of vasoconstriction as drinking through a thin straw. This is when blood vessels relax and widen, increasing blood flow and dropping blood pressure. The opposite of vasoconstriction is vasodilation.
Untreated high blood pressure ( hypertension) can lead to health conditions over time, like vision loss, stroke, or a damaged heart. At the same time, the resistance or force of blood flow is raised.
When blood vessel volume is lowered, blood flow is also reduced. Vasoconstriction reduces the volume or space inside affected blood vessels.
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