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  1. 2023年3月17日 · Eight ounces of coconut water contains approximately 101 milligrams of sodium. A diet rich in sodium can result in an increase in blood pressure. High blood pressure over a long period of time can ...

  2. 2023年7月27日 · Tuberculosis (TB) is a contagious infection that usually attacks your lungs. It can also spread to other parts of your body, like your brain and spine. A type of bacteria called Mycobacterium ...

  3. Ovulation usually happens 14 days before your next period begins, but it can vary from month to month -- even in women with regular cycles. To get a better sense of when you’re ovulating, chart ...

  4. 2024年1月18日 · Fish, poultry, or lean meats (3 oz, or about the size of a deck of cards or the palm of your hand; 2 egg whites or 1 whole egg): 6 or fewer per day. Nuts, seeds, or beans (1 tablespoon of peanut ...

    • 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.

  5. 2024年3月13日 · A change in size, shape, color, or elevation of a mole. The appearance of a new mole during adulthood, or new pain, itching, ulceration, or bleeding of an existing mole. Merkel cell carcinoma ...

  6. 2023年8月17日 · These symptoms can include trouble concentrating, problems with memory, headaches, changes in personality, mood swings, dizziness, fatigue, and insomnia for weeks to months. Delayed concussion ...