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www.reference.com/article/causes-low-blood-pressure-8b231882718e0ca

Dehydration sometimes causes low blood pressure, according to Mayo Clinic. Dehydration can lead to a life-threatening condition known as hypovolemic shock. The low blood volume reduces the oxygen supply to tissues and, if untreated, can cause death. Other causes include...

www.reference.com/article/low-blood-pressure-1187ada3b7ccfd23

Low blood pressure, or hypotension, occurs when a person's blood pressure measures below 90 for systolic and 60 for diastolic, according to WebMD. Having just one number below these given figures is enough for a person to have hypotension.

www.reference.com/article/causes-low-blood-pressure-readings-4fa159e8f05f0c38

A low blood pressure reading may be the result of hypotension, which is chronically low blood pressure, according to the American Heart Association. However, prolonged bed rest, pregnancy, a decrease in blood volume, certain medications and heart problems can also cause...

www.reference.com/article/causes-blood-pressure-60213c71456184b4

Blood pressure is caused by the force of the blood as it pushes against artery walls, according to WebMD. This pressure is measured during the active and resting phases of every heartbeat.

www.reference.com/article/causes-high-blood-pressure-8fcc098e7658cad4

According to Mayo Clinic, primary hypertension, or high blood pressure, has no identifiable causes and develops over time. Medical conditions such as chronic kidney disease, thyroid disease, sleep apnea, congenital blood defects and adrenal gland tumors are causes of se...

www.reference.com/article/effects-low-blood-pressure-836a3cae2728a987

According to the American Heart Association, effects or symptoms of low blood pressure can include dizziness or lightheadedness; fainting; lack of concentration; blurred vision; dehydration; nausea; cold, clammy skin; shallow, rapid breathing; fatigue and depression. In...

www.reference.com/article/causes-high-blood-pressure-25bce979177418c4

Causes of high blood pressure include smoking, older age, thyroid and adrenal disorders, lack of exercise, obesity, chronic kidney disease, excessive alcohol consumption, excessive consumption of salt and a family history of hypertension. The common type of hypertensio...