Low blood pressure, also known as hypotension, is usually considered a sign of good health and low risk for cardiovascular disease. However, there are times when persistently low blood pressure or a sudden drop can be a sign of an underlying health issue that needs medical attention. Knowing when low blood pressure becomes a problem can help ensure timely intervention and proper care.

Blood pressure readings consist of two numbers:

Systolic pressure (the top number) indicates the pressure in your arteries when your heart pumps blood. Diastolic pressure (the bottom number) reflects the pressure in your arteries while your heart is resting between beats.

The normal reading is usually 120/80 mmHg or less. Hypotension is clinically defined as having blood pressure readings less than 90/60 mmHg. In some patients, low blood pressure will have no adverse health consequences and therefore does not need to be treated. In extreme cases, however, it can limit the flow of oxygen and nutrients to vital organs, resulting in potentially life-threatening complications, such as shock.

Causes of Low Blood Pressure

Hypotension can result from many factors. Some of the factors that cause hypotension are as follows:

• Insufficient fluid intake or excessive fluid loss can lead to decreased blood volume and hence hypotension.
• An injury or internal bleeding may result in hypotension. This happens because blood pressure becomes significantly reduced.
• Some hormonal changes along with the increased blood requirement during pregnancy also causes hypotension.
• Issues like heart failure or arrhythmias can impair blood circulation and result in low blood pressure.
• Certain drugs, including diuretics, antidepressants, and blood-pressure-lowering medications, can induce hypotension.

Symptoms of Hypotension

While low blood pressure may not always cause symptoms, it can sometimes be associated with:

- Dizziness or fainting

- Fatigue and weakness

- Blurred vision

- Nausea

- Confusion or difficulty concentrating

- Shallow breathing

- Palpitations

If the person experiences these symptoms, with the recorded blood pressure reading, the medical services have to be consulted.

Types of Low Blood Pressure

1. Orthostatic Hypotension: This is a kind of hypotension that appears as a result of decreased blood pressure when a person is standing up from lying down or sitting position and primarily affects elderly people.

2. Postprandial Hypotension: This is a drop in blood pressure after eating, more common in older people.

3. Neurally Mediated Hypotension: It is triggered by standing for long periods. This type can affect younger people and is associated with miscommunication between the brain and heart.

When Is Low Blood Pressure Dangerous?

There is no such thing as a universal threshold for very low blood pressure, but a blood pressure reading below 90/60 mmHg can be dangerous and require prompt medical assessment if accompanied by symptoms of fainting, confusion, or shortness of breath. Sudden falls in blood pressure may point to potentially serious underlying causes, which can include:

• Internal bleeding
• Sepsis (severe infection)
• Allergic reactions

Management and Treatment

Treatment of hypotension depends on its cause:

• Hydration Drinking more water can help against dehydration-related hypotension.
• Compression Stockings: These can improve circulation and reduce blood pooling in the lower limbs.
• Dietary Changes: Increasing salt intake under supervision can help increase blood pressure
• Medication Changes: The physician may need to reduce dosages of some medications or replace prescriptions.

For more severe cases, physicians might also administer fludrocortisone or midodrine to increase blood pressure. Shock from hypotension should be treated promptly to ensure proper function of organs.

Can Hypotension Cause Fatigue?

Chronic fatigue syndrome has also been associated with low blood pressure. Prolonged tiredness, despite adequate rest, may require reassessment of blood pressure levels. Fatigue secondary to hypotension will impact functionality and thus requires assessment and treatment of the cause.

When to Seek Medical Care

If your blood pressure readings are low consistently and without symptoms, you probably have nothing to worry about. If you do have symptoms like dizziness, fainting, or confusion, you need to go to the doctor. Blood pressure checks are usually conducted regularly. Once you are aware of your own normal baseline, you will know right away when there is something wrong.

Lifestyle Tips That Support Normal Blood Pressure

1. Other than directly treating hypotension, a healthy lifestyle overall would promote balanced blood pressure levels.
2. Exercise regularly; it promotes cardiovascular health and can help regulate blood pressure.
3. Focus on nutrient-dense foods rich in iron, B vitamins, and electrolytes to support circulatory health.
4. Excessive alcohol consumption dehydrates the body and lowers blood pressure.
5. Practices like yoga and meditation can help maintain a healthy blood pressure range.

As wildfires have become more frequent and intense in several countries, scientists are looking for hidden health consequences of the smoke that lingers on long after the flames subside.

Beyond respiratory issues and eye irritation, wildfire smoke may also trigger severe migraine attacks.

A recent study in JAMA Network Open found that exposure to wildfire smoke was associated with a significant increase in emergency department visits for migraine and other primary headache disorders.

The finding suggested that that polluted air from wildfires may be a powerful migraine trigger.

What Did The Study Find?

Researchers from Health Canada, the British Columbia Centre for Disease Control, and several Canadian universities analysed nearly 998,000 emergency department visits for migraine and other primary headache syndromes in Alberta and Ontario between 2010 and 2023.

They discovered that for every 5 µg/m³ increase in wildfire-related PM2.5 (tiny particulate matter produced by wildfire smoke), emergency department visits for migraine and other primary headache disorders increased by about 6%.

However, the researchers did not observe a similar increase with PM2.5 pollution on days without wildfire smoke, suggesting that wildfire smoke may have unique characteristics that make it more harmful than regular air pollution.

Also read: Global Heatwave Crisis Grows: France Sees Excess Deaths Japan Swelters, Camels Die In Africa

Effects Of Wildfire Smoke On The Brain

Scientists believe these particles may trigger inflammation throughout the body, increase oxidative stress, affect blood vessels and the nervous system, and activate pain pathways involved in migraine.

Previous research has also linked air pollution to headaches, but this study specifically isolates the effects of wildfire-generated smoke.

Emerging evidence also suggests smoke exposure may contribute to difficulty concentrating, memory problems, cognitive decline, and increased inflammation affecting brain function.

Also read: Wildfire Smoke Could Hurt IVF Success; Here's Why Doctors Say You May Want To Delay Your Appointment

Who Is At Risk?

Another important observation was that the association was stronger among people living in moderate and underprivileged neighbourhoods.

The researchers suggest that the differences in housing quality, access to air filtration, healthcare access, or the ability to avoid smoke exposure during wildfire events are valuable factors.

The authors said, “Acute exposure to wildfire-sourced PM2.5 was associated with increased emergency department visits for migraine and other primary headache syndromes.”

They also noted that, “These findings support the need for further research into wildfire smoke and severe headache-related outcomes.”

Also read: What Happens After Wildfires? Long-Term Health Risks To Watch Out For After Exposure

Wildfires Are Escalating Around The World

The study arrives as multiple countries continue to battle severe wildfire incidents. Canada remains in the midst of an active wildfire season, with hundreds of fires burning across the country.

Across France and Spain, massive wildfires have forced the evacuation of hundreds of thousands of residents.

Other parts of Europe, including Scotland, have also experienced significant wildfire activity this summer.

Also read: Study Says California Wildfire Can Affect The Heart

Other Hazards Of Wildfire Smoke

Lung And Chronic Respiratory Disease

Prolonged exposure to wildfire smoke can have long-term effects on the respiratory system.

Possible health effects may include persistent cough, poor lung function, worsening asthma symptoms and more.

Heart Disease

The tiny particles in wildfire smoke don't just stay confined to the lungs. Once they enter the bloodstream, they can affect the cardiovascular system.

In the long run, wildfire smoke exposure can lead to heart attacks, stroke, irregular heart rhythms, elevated blood pressure, increased inflammation in blood vessels

Mental Health Effects

Besides the stress of evacuation and property loss, smoke exposure itself may contribute to mental health problems directly.

They can cause anxiety, depression, post-traumatic stress disorder (PTSD), sleep disturbances, among other conditions.

Possible Cancer Risk

Growing evidence suggests that long-term exposure to wildfire smoke may increase the risk of several cancers.

Studies have reported possible associations with lung cancer, breast cancer, colorectal cancer, bladder cancer, and certain blood cancers.

Pregnancy And Infant Health

Research suggests exposure during pregnancy may increase the risk of preterm birth, low birth weight and other pregnancy complications.

Healthcare providers recommend minimizing outdoor exposure whenever air quality deteriorates.

The IVF laboratory is a critical place where science and precision come together to help create embryos. Here, the expert explains the careful measures that take place inside the lab and the important role of the embryologist in helping couples achieve parenthood.

Many couples are battling infertility and are advised to undergo in vitro fertilization (IVF) to conceive. The couples tend to focus on various factors such as doctor consultations, hormone injections, and embryo transfer.

However, one of the most important parts of the treatment happens in the IVF laboratory. Couples are often unaware of what happens behind the closed doors in the IVF lab.

The IVF Lab: A Highly Controlled Environment

Did you know? Highly trained embryologists work with advanced technology when it comes to handling the eggs, sperm, and embryos in the IVF laboratory.

They are the ones who are responsible for planning and carrying out every step with accuracy to be able to give embryos the best possible environment for healthy development.

The lab is a controlled and sterile space wherein the temperature, humidity, air quality, and lighting are strictly monitored to be able to protect the delicate eggs and embryos.

Even small changes in the environment tend to impact embryo development, so strict quality standards are followed every day by the expert.

Also read: From Hope To Parenthood: How IVF And Embryology Are Changing The Fertility Journey For Couples

From Egg Retrieval to Fertilisation

The process commences after the woman's eggs are collected during a minor procedure. On the same day, the male partner will also provide a semen sample, or previously frozen sperm, if needed. The embryologist will examine both the eggs and sperm under a microscope to check the quality.

Then the healthiest sperm are selected to fertilise the eggs.

Fertilisation will occur after the egg and the sperm are placed together in a special culture dish or via a procedure known as Intracytoplasmic Sperm Injection (ICSI), wherein a single healthy sperm is directly injected into the egg.

The expert will decide the method after knowing the couple's fertility condition.

Also read: Delhi's Poor AQI, Monsoon Conditions Put Children's Lungs at Risk: Ways to Keep Kids Safe

Monitoring Embryo Development

When fertilisation happens, the embryos are placed in special incubators that closely mimic the conditions inside the human body.

Over the next few days, embryologists monitor their growth and development, and some embryos may undergo genetic testing to identify certain inherited or chromosomal conditions before they are transferred.

The Embryologist's Role in Ensuring Safety and Success

Understand that the embryologist maintains detailed records and follows strict identification protocols to ensure every egg, sperm, and embryo is accurately matched with the correct patient.

Hence, the embryologist plays a vital role in every successful IVF journey.

Ravi is 34 years old. He goes to the gym three times a week, weighs a healthy 68 kg, and has never been diagnosed with diabetes or high blood pressure. During his company's annual health check-up, an ultrasound revealed four unexpected words: Grade 1 Fatty Liver.

Like many people, Ravi was shocked. "How is that possible?" he asked. "I'm not overweight."

The answer reflects a growing reality that is changing how liver specialists understand one of India's fastest-growing liver diseases.

The Old Story Vs The New Reality

For years, fatty liver—now medically known as Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)—was considered a condition affecting people who were overweight, had diabetes, or consumed excessive alcohol.

That understanding is no longer complete.

Today, we increasingly diagnose fatty liver in individuals who are lean, appear metabolically healthy, and do not consume alcohol. This condition, often referred to as lean MASLD, accounts for nearly 10–20% of fatty liver cases in Asia. Given the unique genetic and metabolic profile of South Asians, the true burden in India may be even higher.

So, What Is Actually Going On? The reasons are more complex than body weight alone—and many are hiding in plain sight.

Also read: Do People With Type 2 Diabetes Face A Higher Risk of Severe Dengue? New Review Says Yes

Your Genes May Be Working Against You

Certain genetic variants, particularly PNPLA3, make the liver more likely to store fat even when the rest of the body appears healthy. This genetic predisposition is significantly more common among South Asians than Western populations.

In other words, you may be lean, eat reasonably well, and still develop fatty liver because of your inherited biology.

Hidden Metabolic Dysfunction

A normal body weight does not always mean a healthy metabolism.

Many lean Indians carry excess visceral fat—fat stored around internal organs rather than under the skin. This "skinny fat" phenomenon is especially common in our population and is strongly linked to liver fat accumulation and inflammation, despite a normal BMI.

Also read: Subtle Warning Signs Of Serious Health Conditions That Only Your Partner Can Notice

It's Not Just How Much You Eat — It's What You Eat

A diet rich in refined carbohydrates and added sugars can overwhelm the liver.

Frequent consumption of foods such as white rice, refined flour (maida), packaged snacks, biscuits, sugary beverages, and fruit juices provides excess fructose, which the liver converts directly into fat.

Over time, this process promotes fatty liver—even in individuals who never become overweight.

By Dr. Chetan Kalal, DM Hepatology, Liver Transplant Specialist, Saifee Hospital, Mumbai