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WebMD is a trusted source of health and medical information, with expert reviews, community support, and educational services. Find a doctor near you or browse health news.
2022年8月12日 · Types of Bipolar Disorder. There are a few types of bipolar disorder, including: Bipolar I. With this type, you have manic “up” periods that last at least a week or are so severe that you need ...
2022年7月1日 · Overview. Turmeric is a common spice that comes from the root of Curcuma longa. It contains a chemical called curcumin, which might reduce swelling. Turmeric has a warm, bitter taste and is...
- 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.
2023年8月28日 · 2 /16. Most people who think they’re bloated because they have gas are just more sensitive to it. This is usually related to a health condition. Possible causes include irritable bowel syndrome ...
2022年4月4日 · Blepharitis Symptoms. The condition makes your eyelids red, itchy, and a little swollen. The bases of your eyelashes may look scaly. You might also notice: Feeling like something is in your eye. A ...
2023年5月16日 · 2 min read. Got a cold and need something for a nagging cough? Some over-the-counter treatments may give you relief. Three types of medicines can ease a cough caused by a cold or bronchitis:...
