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2024年3月4日 · Hyperlipidemia has many causes. Some are related to lifestyle, and some are the result of medical issues. Diet. Cholesterol, a waxy substance, is a type of fat your body makes. It can also come ...
2023年8月17日 · Mild or severe fatigue. Sore throat. Sneezing. But other common COVID-19 symptoms, such as cough, fever, and loss of smell or taste, are still important signs to watch out for in case of any COVID ...
2023年11月15日 · Acute onset atrial fibrillation. This rapid, chaotic heartbeat comes on quickly and goes away quickly. It usually resolves by itself in 24 to 48 hours. Causes include age, cardiovascular disease ...
2024年4月17日 · Gastroenteritis is when your stomach and intestines are irritated and inflamed. This can cause belly pain, cramping, nausea, vomiting, and diarrhea. The cause is typically inflammation triggered...
- 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.
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2024年4月11日 · If you have hyperthyroidism, it means your thyroid is overactive and produces too much of a hormone called thyroxine. Learn symptoms, causes, diagnosis, and treatment options.
