Hello, I'm a medical professional with expertise in cardiovascular health. When discussing blood pressure, it's important to understand that it's measured in two numbers: systolic pressure (the top number) and diastolic pressure (the bottom number). Hypotension, or low blood pressure, can be a concern when the systolic pressure falls below 90 mm Hg or the diastolic pressure falls below 60 mm Hg. However, what's considered dangerously low can vary depending on the individual's baseline blood pressure, overall health, and the presence of symptoms. Symptoms of low blood pressure can include dizziness, fainting, blurred vision, and fatigue. Orthostatic hypotension is a type of low blood pressure that occurs when standing up too quickly, leading to lightheadedness or fainting. It's crucial to consult with a healthcare provider if you suspect you have low blood pressure, especially if it's accompanied by symptoms. They can help determine the cause and recommend appropriate treatment. read more >>

Most doctors consider blood pressure too low only if it causes symptoms. Some experts define low blood pressure as readings lower than 90 mm Hg systolic or 60 mm Hg diastolic. If either number is below that, your pressure is lower than normal. A sudden fall in blood pressure can be dangerous.read more >>