起身「眼前一黑」係咩事?

起身「眼前一黑」係咩事?

healthy PIG

當你由坐或瞓姿突然企起,血液未能即時供應足夠氧氣到腦部,形成姿勢性低血壓(orthostatic hypotension),導致短暫性視野模糊、頭暈甚至站立不穩。青少年、長者、飲水不足或患有自律神經功能障礙人士較常出現。

放鬆、體溫與血壓:身體「鬆一鬆」對健康有幾大?

放鬆、體溫與血壓:身體「鬆一鬆」對健康有幾大?

healthy PIG

本文探討身體放鬆時對血壓與體溫的調節原理,並解釋點解浸熱水浴會令人昏昏欲睡,並非單純因為體溫升高。最後提供四項日常生活建議,幫助讀者利用體溫與血壓變化改善睡眠與壓力管理。

高血壓什麼時候需要緊急處理?

When does high blood pressure require emergency treatment?

healthy PIG
Your blood pressure (the force with which blood flows through your arteries and blood vessels) may be chronically high due to your diet, lifestyle, or genetics. But it can also rise dramatically: When you're stressed, for example, your blood pressure can actually rise. In some cases, your blood pressure may cause a medical emergency.
This increase in blood pressure is called a "hypertensive crisis" and can only be treated in an emergency room. When does high blood pressure require emergency treatment?
In this article, I will discuss high blood pressure, its symptoms and causes, and when to treat it as an emergency. I will outline some of the damage that can occur if a hypertensive emergency is ignored. I'll tell you when you should go to the emergency room with your symptoms.
你會死於高血壓嗎?

Will you die from high blood pressure?

healthy PIG
Hypertension is known as the "silent killer" because it often has no symptoms and can lead to death if left untreated. High blood pressure also increases the risk of other serious conditions, such as heart disease and stroke. Let's take a closer look at how chronic high blood pressure can lead to death. and steps you can take to reduce your risk, manage your condition, and live a healthy life.
大腦磁共振血管造影檢查

Brain magnetic resonance angiography

Healthy PIG
The brain undergoes an MRA (magnetic resonance angiography) examination. MRA uses magnetic fields, radio waves, and computers to create images of s...
血管病

Vascular disease

Healthy PIG

Vascular disease (vasculopathy) affects the blood vessels that carry oxygen and nutrients throughout the body and remove waste products from tissues. Common blood vessel problems occur when plaque (made up of fat and cholesterol) slows or blocks blood flow in an artery or vein. Lifestyle changes often help, but some people need medication or surgery.

血壓計原理

Principle of blood pressure monitor

Healthy PIG
A sphygmomanometer is a device used to measure blood pressure, consisting of an inflatable cuff that folds and then releases the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure pressure. A sphygmomanometer consists of an inflatable cuff, a measuring device (mercury manometer or aneroid manometer), and an inflation mechanism, which can be a manually operated bulb and valve or an electrically operated pump.