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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.
2024年4月17日 · Gastroenteritis is inflammation from an infection in your stomach and intestines. It can cause nausea, diarrhea, and vomiting, which may cause dehydration. How long your symptoms last depends on ...
Caffeine. 3 /12. Caffeine pills and powders aren’t a good idea, because of the risks if you overdose. But you can enjoy coffee guilt-free, as long as it doesn’t worsen your sleep or make you ...
2023年4月30日 · Chills. MRSA can cause many other symptoms because once it gets into your bloodstream, it can settle anywhere. MRSA can cause an abscess (inflamed tissue with pus inside) in your spleen, kidney ...
- 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11月29日 · Sex. It’s more common in women than in men. Health conditions. Diabetes, gout, rheumatoid arthritis, osteoarthritis, thyroid conditions, and tuberculosis can lead to trigger finger. Job. It’s ...
2021年1月14日 · Use WebMD’s Pill Identifier to find and identify any over-the-counter or prescription drug, pill, or medication by color, shape, or imprint and easily compare pictures of multiple drugs.
