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2023年9月19日 · Leg pain that seems severe, ongoing, or out of the ordinary is a different story. Sometimes it’s a sign of an urgent problem that could stick around -- or get worse -- without treatment. Call ...
- Evan Starkman
2023年11月7日 · Jaundice Causes. 6 min read. What Is Jaundice? When red blood cells die, they leave behind bilirubin, a yellow-orange pigment in the blood. The liver filters bilirubin from the bloodstream to be...
- Tammy Worth
2023年9月7日 · Glaucoma Causes. Glaucoma Risk Factors. Is Glaucoma Hereditary? 13 min read. What Is Glaucoma? Glaucoma is a condition that damages your eye's optic nerve, and it gets worse over time. It's often...
2023年8月3日 · Anemia Types and Causes. Anemia Diagnosis. 10 min read. What Is Anemia? Anemia is defined as a low number of red blood cells. In a routine blood test, anemia is reported as a low hemoglobin or...
- Pathophysiology
- Significance
- Signs and symptoms
- Overview
- Prognosis
A blood pressure reading appears as two numbers. The first and higher of the two is a measure of systolic pressure, or the pressure in the arteries when the heart beats and fills them with blood. The second number measures diastolic pressure, or the pressure in the arteries when the heart rests between beats.
Optimal blood pressure is less than 120/80 (systolic/diastolic). In healthy people, low blood pressure without any symptoms is not usually a concern and does not need to be treated. But low blood pressure can be a sign of an underlying problem -- especially in the elderly -- where it may cause inadequate blood flow to the heart, brain, and other vi...
Chronic low blood pressure with no symptoms is almost never serious. But health problems can occur when blood pressure drops suddenly and the brain is deprived of an adequate blood supply. This can lead to dizziness or lightheadedness. Sudden drops in blood pressure most commonly occur in someone who's rising from a lying down or sitting position t...
Postural hypotension is considered a failure of the cardiovascular system or nervous system to react appropriately to sudden changes. Normally, when you stand up, some blood pools in your lower extremities. Uncorrected, this would cause your blood pressure to fall. But your body normally compensates by sending messages to your heart to beat faster ...
The risk of both low and high blood pressure normally increases with age due in part to normal changes during aging. In addition, blood flow to the heart muscle and the brain declines with age, often as a result of plaque buildup in blood vessels. An estimated 10% to 20% of people over age 65 have postural hypotension.
2022年9月21日 · A nervous breakdown leads to the inability to function normally, at least temporarily. Several signs, however, can indicate that you, or someone you know, might be on the path toward experiencing...
2023年9月24日 · Folliculitis is a skin problem that happens when you get bacteria or a blockage in a tiny pocket in your skin called a hair follicle. You have hair follicles just about everywhere except your lips,...
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