Why Does High Blood Pressure Cause Nosebleeds?

Updated Dec 14, 2024 | 10:00 AM IST

SummaryHigh blood pressure can cause nosebleeds, especially during a hypertensive crisis, highlighting the importance of monitoring blood pressure and understanding common nosebleed triggers for timely medical care.
Image Credit: Canva

Image Credit: Canva

It was a typical morning. My mother was getting ready; this was her usual routine: bustling around the house. When she suddenly stopped and shouted, blood was oozing from her nose. As kids, my siblings and I were terrified. We scrambled to help, but it wasn't until later that we learned the cause of that alarming moment: high blood pressure. That day was our first lesson in the silent yet powerful effects of hypertension. Nosebleeds, or epistaxis, are common, and nearly everyone experiences at least one in their lifetime.

While most are minor and often caused by dry air or irritation, some can signal underlying health concerns. One recurring question is whether high blood pressure causes nosebleeds or is merely coincidental.

Where Exactly Does a Nosebleed Occur?

The nose is covered by a rich plexus of small blood vessels, making it prone to bleeding. Most nosebleeds are anterior in origin, occurring at the front of the nose, and are relatively benign. They often occur because of irritants such as dry air, frequent nose-blowing, or trauma.

On the other hand, posterior nosebleeds are caused by a source that is located deeper within the nasal cavity. They are less common but more severe, as the blood tends to flow backward into the throat, making them more difficult to control. Common causes of posterior nosebleeds include trauma, medical conditions, or high blood pressure.

Connection Between Nosebleeds and High Blood Pressure

Hypertension is the condition whereby the pressure of blood against the arterial walls is consistently too high. Over time, this may damage the fine blood vessels in the nose, causing them to rupture more easily.

Significant studies have shown a strong relationship between hypertension and severe cases of nosebleeds necessitating urgent care. A certain study showed that patients diagnosed with high blood pressure had 2.7-fold increased chances of having nosebleeds that were not slight.

However, it should be noted that mild hypertension by itself does not cause nosebleeds. Nosebleeds are more likely to happen during a hypertensive crisis when the blood pressure suddenly rises to above 180/120. A hypertensive crisis can also have other symptoms such as a severe headache, shortness of breath, and anxiety. Therefore, it is considered a medical emergency.

Why Does Hypertension Increase the Risk?

Chronic hypertension makes the walls of blood vessels weaker and less elastic, which easily causes them to tear. In the nose, this is especially vulnerable because the blood vessels are close to the surface. Sudden surges in blood pressure, such as in a hypertensive crisis, can cause tears in these weakened vessels, resulting in nosebleeds.

While hypertension is a contributing cause, nosebleeds occur infrequently as the only manifestation of high blood pressure. This makes regular monitoring for blood pressure all the more crucial, as hypertension has the reputation of being the "silent killer" since people often do not present symptoms until the disease has run its course.

Other Causes of Nosebleeds

  • Dry Air: Cold weather or house heating dries out membranes that line the nose, hence susceptible to cracking.
  • Trauma: Blows in the nose, nose picking or excessive nose blowing can traumatize blood vessels.
  • Intrinsic Disease: Liver disease and kidney disease and drug therapy that affect clotting such as blood thinners enhance the risk of nose bleeding.
  • Foreign Bodies: Children especially tend to insert objects up their noses, which can be irritating and bleed.
  • Allergies or Infections: Chronic nasal inflammation resulting from allergies or colds causes irritation to the nasal mucosa.

Managing Nosebleeds at Home

For most nosebleeds, you can manage them yourself at home:

1. Sit up and lean slightly forward to prevent swallowing blood.

2. Press your nostrils together for at least 10 minutes.

3. Use a cold compress on the bridge of your nose to constrict blood vessels.

4. If the bleeding continues, use a nasal decongestant spray.

Consult a doctor if the bleeding persists beyond 20 minutes, is heavy, or follows a head injury.

Preventing Nosebleeds

Preventive measures can decrease the incidence of nosebleeds:

  • Use a humidifier to maintain moisture in the air.
  • Apply saline sprays or gels to keep nasal passages hydrated.
  • Avoid nasal trauma by being gentle when blowing your nose.

For patients with hypertension, managing blood pressure is the best way to minimize the risk of complications. A combination of lifestyle changes, such as maintaining a healthy diet, regular exercise, and prescribed medications, can help keep blood pressure in check.

When to Worry About Nosebleeds

Most nosebleeds are harmless, but they can sometimes be signs of an underlying health condition. In adults with high blood pressure, frequent or severe nosebleeds should never be ignored. A health provider should be consulted in order to rule out any serious conditions and ensure appropriate treatment.

Regular check-ups, a healthy lifestyle, and awareness about the relationship between nosebleeds and high blood pressure would go a long way to protect your health. Indeed, prevention is always better than cure.

Epistaxis and hypertension. Post Graduate Medical Journal. 1977

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Does Your Imagination Feel More Like Reality? Science Has An Answer For It

Updated Feb 16, 2026 | 07:06 PM IST

SummaryOften, we underestimate the way our brain works and daydreaming has long been seen as a major sign of creativity. But scientists warn of a condition known as “maladaptive daydreaming” where people fantasize about celebrities, historical figures or idealized versions of themselves
Does Your Imagination Feel More Like Reality? Science Has An Answer For It

Credit: Unsplash

Often, we underestimate the way our brain works and daydreaming has long been seen as a major sign of creativity. Many artists have used their imagination to bring their work to life. However, science offers a different perspective.

Coined in 2002 Dr. Eliezer Somer, those who experience “maladaptive daydreaming” often fantasize about celebrities, historical figures or idealized versions of themselves. Their imaginations are more elaborate, diverse, and complex as compared to other daydreamers.

A 2012 Consciousness and Cognition study found that maladaptive daydreamers spend, on average, 57 percent of their waking hours daydreaming far more than their counterparts.

Dr Somer explains: "The greatest difference is the maladaptive daydreamers reported that the activity interfered with their daily life. They also reported higher rates of attention-deficit and obsessive compulsive symptoms, and more than 80% used kinesthetic activity or movement when daydreaming, such as rocking, pacing or spinning"

He further noted that while everyone experiences moments of mind-wandering, it usually does not interfere with daily life. But maladaptive daydreaming does interfere in regular life. The condition has not been classified as a mental illness and there is no treatment for it yet.

What Do People Say?

Many Reddit users have shared their experiences with maladaptive daydreaming, often asking questions such as: “Is it normal to daydream for such long hours?”

While some responses described daydreaming as a form of dissociation when bored, others relied on music or movies to fuel fantasies of being a “better version” of themselves, often struggling to return to reality.

Common Symptoms Of Maladaptive Daydreaming

Here are some early signs of maladaptive daydreaming to keep an eye out for:

  • Compulsive need to daydream
  • Avoiding social interaction and activities
  • An inability to perform work or other daily tasks
  • Extreme feelings of shame or guilt
  • Feeling a compulsive need to daydream that you can't control
  • Making a conscious effort to stop or lessen daydreaming episodes.
  • Intense and extremely vivid daydreams
  • Complex and elaborate daydreams, often with many people involved
  • Daydreams accompanied by repetitive movements such as pacing
  • Prolonged daydreams that may last hours at a time
  • A feeling of disconnect or dissociation from people and reality during the episode.

What Does Science Say?

Researchers do not classify maladaptive daydreaming as a mental illness, since it lacks physical symptoms. However, it clearly interferes with daily functioning, with many individuals preferring to daydream over real-life activities.

Rachel Bennett, a member of Dr. Somer’s online community, shared she usually dreams up new episodes of her favorite Japanese animé characters and TV shows. She’s also created four families of fictional characters which have grown with her over the years.

“I’d much rather stay home and daydream than go out,” she said.

What Causes Maladaptive Daydreaming?

Dr. Somer noted that about one-quarter of maladaptive daydreamers are trauma survivors who use daydreaming as an escape. Many report family members with similar tendencies, as well as being shy or socially isolated.

Meanwhile, a Harvard Medical study found that 80 percent of maladaptive daydreamers have ADHD, followed by anxiety disorders, depression, and OCD. Researchers believe daydreaming often acts as a coping mechanism for pent-up emotions that cannot be expressed in real life, so they are released through imagination instead.

How Do You Cope With Maladaptive Daydreaming?

Experts emphasize that maladaptive daydreaming is not an extreme condition requiring formal diagnosis, but many people have shared strategies that help:

  • Exercise: One forum user reported swimming daily, gradually reaching 2,000 meters, which acted as meditation and grounded them in reality.
  • Remove triggers: Avoid activities that spark daydreaming episodes.
  • Practice mindfulness: Stay present and aware of thoughts.
  • Limit music use: Music is a common trigger.
  • Scheduled daydreaming: Set aside specific times with a timer, then consciously exit the session.
  • Seek professional help: Therapies such as CBT, DBT, and mindfulness-based stress reduction have shown benefits.
  • Stay busy: Engage in tasks to prevent wandering thoughts.
  • Improve sleep quality.
  • Make daydreams less appealing: Reduce instant gratification.
  • Self-development and creativity: Channel imagination into productive outlets.
  • Journaling: Record thoughts daily or weekly.
  • Practice self-acceptance.
  • Find group support.

End of Article

AI Is Quoting YouTube Videos For Medical Queries

Updated Feb 17, 2026 | 02:00 AM IST

SummaryInvestigations found Google AI health summaries often inaccurate and frequently citing YouTube over medical sources. Growing reliance on chatbots for diagnosis is linked to higher health risks, as confident but incorrect advice may delay proper treatment.
AI Is Quoting YouTube Videos For Medical Queries

Credits: iStock

In January 2026, a Guardian investigation uncovered something deeply unsettling. Google’s AI summaries, designed to quickly answer search queries, were giving users inaccurate health information. Some of the advice was not just misleading but potentially dangerous.

One striking example involved liver function tests. The AI presented incorrect “normal ranges,” which could make someone with a serious liver infection believe their reports were fine. Following the investigation, Google quietly removed AI Overviews for certain queries such as “normal range for liver function tests” and similar searches.

Soon after, another finding raised further alarm. Researchers discovered that Google’s AI Overviews frequently relied on YouTube rather than established medical websites when responding to health questions. Considering nearly two billion people use Google search every month, the implications were hard to ignore.

Is AI Replacing Medical Advice

For years, doctors have warned about “Dr Google” and self diagnosis. But the situation has now moved beyond search results. People are increasingly asking AI tools directly for answers to complex medical problems.

The search optimization platform SE Ranking analyzed more than 50,000 health searches in Germany. The most cited source in AI responses was YouTube, which accounted for 4.43 percent of citations. That is about 3.5 times more than netdoktor.de, one of the country’s biggest consumer health portals. It was also cited more than twice as often as the well known medical reference MSD Manuals.

Only 34.45 percent of citations in AI Overviews came from reliable medical sources. Government health institutions and academic journals together contributed roughly one percent. No hospital network, university, or medical association came close to YouTube’s citation numbers.

Read: ChatGPT Health Explained: Will This New OpenAI Feature Replace Doctors?

Why Experts Are Concerned

The concern is simple. YouTube is a video platform, not a medical publisher. While qualified doctors upload educational videos, the platform also hosts wellness influencers, life coaches, and creators without medical training.

In one particularly worrying example, Google’s AI advised pancreatic cancer patients to avoid high fat foods. Medical experts say this recommendation is the opposite of what many patients actually need and could increase mortality risk.

AI Overviews also gave incorrect information about women’s cancer screening tests. Experts warned this could lead people to dismiss serious symptoms and delay diagnosis.

The Rise of Chatbot Medicine

The shift is not limited to search engines. Chatbots are rapidly becoming everyday health advisers. OpenAI estimates about 40 million people globally use ChatGPT for healthcare guidance each day.

A 2026 Health and Media Tracking Survey by the Canadian Medical Association found roughly half of Canadians consult Google AI summaries or ChatGPT for medical concerns.

Read: AI Therapy Gone Wrong: Psychiatrist Reveals How Chatbots Are Failing Vulnerable Teens

The outcome has not been reassuring. People who followed AI advice for self diagnosis and treatment were five times more likely to experience negative health effects than those who did not.

Studies help explain why. A 2025 University of Waterloo study found GPT 4 answered open ended medical questions incorrectly about two thirds of the time. Another 2025 Harvard study showed chatbots often agreed with flawed assumptions instead of correcting users, such as confusion between acetaminophen and Tylenol.

Researchers say AI systems tend to be overly agreeable and confident, prioritizing helpful responses rather than critical reasoning.

Confidence Versus Care

Despite knowing AI can be wrong, many people still rely on it. Long waits for specialists, lack of family doctors, and limited access to healthcare make instant answers appealing.

The real concern is not curiosity but unquestioned trust. Looking up symptoms is one thing. Acting on AI advice without verification is another.

The technology is powerful and useful, but when confident sounding answers replace medical judgement, the consequences can affect real lives.

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Do We Now Have A Shot For Blood Pressure? here's What You Should Know

Updated Feb 16, 2026 | 08:01 PM IST

SummaryA Lancet review highlights emerging twice-yearly injectable therapies for hypertension that target root molecular pathways. With global control rates poor despite effective pills, experts say these long-acting treatments could improve adherence—though cost and long-term safety remain concerns.
Do We Now Have A Shot For Blood Pressure? here's What You Should Know

Credits: Canva

A new review published in The Lancet highlights how close this shift may be. The study underscores a hard truth: despite having effective medicines for years, global blood pressure control remains disappointingly poor. The real challenge, experts say, is not the absence of drugs—but problems with adherence, health systems, and long-term patient engagement.

The Unrelenting Burden of a Silent Killer

Hypertension continues to be the leading cause of heart attacks, strokes and premature deaths worldwide. The World Health Organization (WHO) defines high blood pressure as readings at or above 140 mm Hg systolic and/or 90 mm Hg diastolic. A normal reading is below 120/80 mm Hg.

The numbers are staggering. Between 2024 and 2025, an estimated 1.4 billion adults aged 30 to 79—roughly one in three people in this age group—are living with hypertension globally. Nearly 44 percent do not even know they have it. Among those diagnosed, fewer than one in four have their blood pressure adequately controlled.

India reflects this alarming trend. The ICMR-INDIAB study (2023) estimated that about 315 million Indians—35.5 percent of the population—have hypertension. Data from NFHS-5 further showed that nearly half of hypertensive men and more than a third of hypertensive women in India do not have their condition under control.

Why Daily Pills Are Falling Short

For decades, hypertension treatment has relied on daily oral medications—often combinations of two or more drugs. These may include ACE inhibitors, angiotensin receptor blockers paired with calcium channel blockers, and thiazide diuretics.

On paper, these regimens are effective. In reality, adherence is the weak link.

Many patients with hypertension also manage diabetes, obesity or high cholesterol. The result is polypharmacy—multiple pills, multiple times a day. Over time, missed doses, side effects and simple “treatment fatigue” erode consistency. Therapeutic inertia—where doctors do not intensify treatment despite poor control—further worsens outcomes.

The Rise of Long-Acting Injectables

This is where long-acting injectable therapies come in. According to Dr Mohit Gupta, cardiologist at G B Pant Hospital and UCMS, the field is now moving toward therapies that may be administered just twice a year.

Unlike traditional medicines that work downstream to reduce blood pressure numbers, these new drugs target upstream molecular pathways that drive hypertension.

One promising approach involves small interfering RNA (siRNA) therapies that inhibit angiotensinogen production in the liver. By silencing this protein, they dampen the renin–angiotensin system—central to blood pressure regulation. Zilebesiran, developed by Roche and Alnylam, is currently in global phase 3 trials.

Another candidate, ziltivekimab by Novo Nordisk, targets inflammatory pathways increasingly linked to cardiovascular risk. There are also newer strategies aimed at selectively modulating aldosterone, a hormone that increases blood volume and pressure.

The appeal is simple: durability. A twice-yearly injection could eliminate the daily burden of pill-taking, improve adherence and provide more stable blood pressure control over time.

Promise, But With Caution

However, excitement is tempered by concern. Cost remains a major question. The recent introduction of inclisiran, an injectable cholesterol-lowering therapy priced between Rs 1.8 and 2.4 lakh annually in India, highlights affordability challenges.

Long-term safety is another critical issue. Hypertension is lifelong. Patients may require these treatments for decades. Experts stress the need for robust long-term data across diverse populations before widespread adoption.

The promise is undeniable. A twice-yearly injection that reliably controls blood pressure could transform preventive cardiology. But its true impact will depend not only on scientific success—but on accessibility, affordability and sustained safety.

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