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2022年5月14日 · Overview. Low blood pressure is generally considered a blood pressure reading lower than 90 millimeters of mercury (mm Hg) for the top number (systolic) or 60 mm Hg for the bottom number (diastolic). What's considered low blood pressure for one person might be OK for someone else.
2023年3月29日 · Essential tremor is a nervous system condition, also known as a neurological condition, that causes involuntary and rhythmic shaking. It can affect almost any part of the body, but the trembling occurs most often in the hands, especially when doing simple tasks, such as drinking from a glass or tying shoelaces.
2024年2月28日 · This blood pressure chart can help you figure out if your blood pressure is at a healthy level. It also can help you understand if you need to take some steps to improve your numbers. Blood pressure is measured in millimeters of mercury (mm Hg). A blood pressure reading has two numbers. Top number, called systolic pressure.
2022年12月3日 · Dizziness is a term used to describe a range of sensations, such as feeling faint, woozy, weak or unsteady. Dizziness that creates the false sense that you or your surroundings are spinning or moving is called vertigo. Dizziness is one of the more common reasons adults visit their doctors.
2024年5月15日 · By Mayo Clinic Staff. A heart attack usually causes chest pain for more than 15 minutes. The chest pain may be mild or severe. Some people don't have any chest pain or pressure. Heart attack symptoms may include: Chest pain. It may feel like pressure, tightness, pain, squeezing or aching. The chest pain may come and go. Upper body pain.
2023年12月15日 · Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms, called arrhythmias, can cause tachycardia. A fast heart rate isn't always a concern. For instance, the heart rate usually rises during exercise or as a response to stress.
2024年4月17日 · 概述. 脑震荡是一种轻度创伤性脑损伤，会影响大脑功能。 其影响往往是短期的，可能包括头痛以及注意力、记忆力、平衡、情绪和睡眠方面的问题。 脑震荡一般由引起大脑功能变化的头部或身体撞击所致。 并非所有身体或头部受到撞击的人都会有脑震荡。 有些脑震荡会导致意识丧失，但大多数脑震荡不会造成这种结果。 跌倒是脑震荡最常见的原因。 脑震荡在从事接触性运动（美式橄榄球或足球）的运动员中也很常见。 大多数人在脑震荡后都能完全康复。 症状. 脑震荡的症状可能很轻微，且不会马上显现出来。 症状可能持续几天、几周甚至更长时间。 发生轻度创伤性脑损伤后，常见症状包括头痛、意识混乱和记忆力丧失（遗忘症）。 遗忘症通常包括忘记造成脑震荡的事件。 脑震荡的身体症状可能包括： 头痛。 耳鸣。 恶心。 呕吐。 疲劳或困倦。
