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Blood pressure is the force exerted by circulating blood on the walls of blood vessels. While high blood pressure often steals the limelight due to its potential harm, low blood pressure, or hypotension, is an equally significant health metric that demands attention. When consistently under 90/60 mm Hg, one’s blood pressure is considered low. This guide delves deep into understanding its types, causes, symptoms, and more.

Types of Low Blood Pressure

  1. Orthostatic (Postural) Hypotension: This type occurs when a person stands up from a seated or lying position. The transition can lead to a brief drop in blood pressure, causing dizziness or fainting.
  2. Neurally Mediated Hypotension: Often occurring after prolonged standing, this type is due to a miscommunication between the heart and the brain.
  3. Severe Hypotension Linked to Shock: The most dangerous type, this can be life-threatening. It results from major trauma, infections, certain severe allergic reactions, or heart issues.

Normal Blood Pressure Values

Key Measurement Parameters: Blood pressure comprises two readings – systolic (top number) and diastolic (bottom number). The former measures the force exerted on artery walls when the heart contracts, while the latter does so when the heart is at rest between beats.

Ranges: Normal: Below 120/80; Elevated: 120-129/<80; High (Hypertension): 130 and above/80 and above; Low (Hypotension): Below 90/60.

Causes of Low Blood Pressure

From lifestyle factors to certain medications, many triggers can lower blood pressure. Some of them include:


Low blood pressure might not always manifest symptoms, but when it does, they can range from mild to severe:

More severe symptoms, indicative of a shock, can include rapid, shallow breathing, clammy skin, and a rapid heartbeat.


Doctors employ a mix of methods:

Treatment and Recommendations

The treatment largely depends on the underlying cause:

Myths and Reality

Myth: Low blood pressure means you’re in perfect health.

Reality: While typically less dangerous than high BP, severe hypotension requires attention.

Myth: Drinking caffeine can cure hypotension.

Reality: While it may temporarily boost your BP, it’s not a long-term solution.


Maintaining a balanced lifestyle goes a long way:

When to Contact a Medical Professional

It’s crucial to reach out if you’re experiencing symptoms like frequent fainting spells, chest discomfort, shortness of breath, or prolonged fatigue.


Low blood pressure, while often overlooked, is an essential health metric. Recognizing its signs, understanding its causes, and knowing when to seek help are paramount. As with many health conditions, early detection and proactive management can make all the difference.