Q:

What are the causes of unstable blood pressure?

A:

Quick Answer

In as many as 95 percent of reported high blood pressure cases in the United States, the underlying cause cannot be determined, but heredity, age, race, gender, diet and lifestyle are contributing risk factors, according to WebMD. Low blood pressure can be caused by dehydration, trauma and health problems.

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Full Answer

Blood pressure is the measure of the force of blood pushing against blood vessel walls. High blood pressure, or hypertension, forces the heart to pump blood harder leading to atherosclerosis and heart failure, states WebMD. Factors that contribute to high blood pressure are smoking, obesity, lack of exercise, too much salt and alcohol, stress, old age, genetics and other diseases. Hypertension is more common in men than women and in blacks than whites. After age 65, black women have the highest incidence of high blood pressure.

Low blood pressure, or hypotension, occurs if a person stands up too quickly after being seated or lying down or after standing too long. Medications can cause low blood pressure, as can other health problems like internal bleeding, severe infection, thyroid disease and heart problems, explains WebMD. Trauma such as severe bleeding and burns can also cause hypotension. For some healthy adults like athletes and regular exercisers, low blood pressure may be normal.

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Related Questions

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    How do you lower blood pressure naturally?

    A:

    Making lifestyle changes, such as eating a healthy diet and exercising on a regular basis, can help to lower blood pressure, according to Mayo Clinic. A person who has hypertension or pre-hypertension should eat a diet that is low in sodium and caffeine as both salt and caffeine can elevate blood pressure. Living a sedentary lifestyle, being overweight and having a high weight can also lead to high blood pressure.

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    Does exercise lower your blood pressure?

    A:

    Cardiovascular exercise does contribute to heart health and reduces the risk of high blood pressure. Walking, running, lifting weights and natural exercise from physical labor are among the best aerobic exercises for heart health, according to WebMD.

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    Can dehydration cause high blood pressure?

    A:

    The specific cause of high blood pressure is unknown as of 2015; however, dehydration is not one of the conditions that cause hypertension, reports WebMD. Several factors that contribute to high blood pressure include chronic kidney disease, genetics, obesity, older age, smoking, stress, and too much salt or alcohol.

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    What is good for high blood pressure?

    A:

    High blood pressure responds well to healthy lifestyle changes, such as cutting back on sodium and alcohol, exercising frequently, quitting smoking and eating a diet full of fresh fruits and vegetables, notes Mayo Clinic. It is crucial to get to an optimal weight and maintain it long-term through these practices.

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