Irregular Sleep, Drinking Caffeine After 3PM Could Raise Your Risk Of Heart Attack And Stroke

Updated Dec 1, 2024 | 03:01 PM IST

SummaryConsistency in sleep is more crucial for heart health than simply sleeping enough hours.
Irregular Sleep, Drinking Caffeine After 3PM Could Raise Your Risk Of Heart Attack And Stroke

Irregular Sleep, Drinking Caffeine After 3PM Could Raise Your Risk Of Heart Attack And Stroke

I’ve always struggled with inconsistent sleep, staying up late and waking up at different times each day. My love for coffee was also on an all-time high with trying all the season specials. But it is only recently, I learned how this irregular sleep pattern and caffeine could increase my risk of heart attack and stroke. Now, I’m prioritizing a consistent sleep schedule and cutting out caffeine after 3 PM to protect my heart.

A new, shocking study shows that irregular sleep patterns can greatly increase the risk of heart attack and stroke. But that's not all: the timing of your caffeine intake could also play a critical role in your cardiovascular health. If you are struggling with inconsistent sleep patterns and regularly sipping on caffeinated beverages late in the day, you may be unknowingly putting yourself at risk for serious heart-related issues.

For most people, sleep is something of a given and we often only consider ourselves as long as we get our required seven to nine hours. However, according to a recent study conducted by researchers at the Children's Hospital of Eastern Ontario, it may not be that long after all. The study, which included more than 72,000 participants, found that people with irregular sleep patterns—those who fall asleep and wake up at vastly different times each day—face a 26% higher risk of experiencing a heart attack or stroke. This increased risk persisted even for those who managed to get enough sleep. The study followed up participants for eight years to track heart events such as heart attacks, strokes, and heart failure. The conclusions were clear: irregular sleep, even if it's sufficient in duration, is a major cardiovascular risk factor.

The researchers found that those whose sleep patterns were highly irregular had a significantly greater chance of life-threatening heart issues. The more erratic your sleep schedule, the greater the risk, regardless of how many hours you sleep. In fact, people with irregular sleep schedules showed worse cardiovascular health outcomes, including higher rates of high blood pressure, elevated stress hormones, and poor blood sugar and cholesterol management.

Senior scientist Dr. Jean-Philippe Chaput said "sleep regularity may be more relevant than sufficient sleep duration in modulating MACE [major adverse cardiovascular event] risk." In the study, it shows that our bodies are comfortable with consistency, and a varied sleep schedule may interfere with other processes that keep us healthy, especially the heart.

Is it Caffeine After 3 PM Causing Sleeplessness?

Another daily habit that may be putting your heart at risk is caffeine consumption after 3 PM. According to Dr. Chaput, the experts emphasize the need for a healthy sleep schedule and avoiding caffeine late in the day. Caffeine can stay in your blood for up to eight hours, and its consumption later in the afternoon can disrupt your sleep cycle.

Consistent, good-quality sleep is necessary for maintaining healthy cardiovascular function, and the disruption of this by late-day caffeine intake exacerbates the risks posed by irregular sleep. When you drink coffee, tea, or other caffeinated beverages too late, the stimulant effect on your nervous system makes it harder to fall asleep at a regular time. This can lead to inconsistent sleep patterns, which, as we have seen, can be harmful to heart health.

Dr Chaput insists that humans need to adopt practices that contribute to regularized sleep habits. This can be attained by establishing a proper sleeping and waking schedule, eliminating afternoon intake of stimulants such as caffeine, and making your body clock coincide with the lifestyle one leads.

How Does Poor Sleep Affect Heart Health?

According to the experts, the disturbance due to irregular sleep patterns impacts more than one physiological process involved in the maintenance of the healthy heart. For example, poor sleep can be associated with increased inflammation of the body, weakened immunity, and altered regulation of blood sugar and cholesterol, all of which contribute to increased blood pressure and weakening endothelial function, both associated with an increased risk for cardiovascular diseases. Sleep also plays a very important role in regulating stress hormones. Poor or disturbed sleep results in increased levels of cortisol, the stress hormone, which increases blood pressure and can have negative impacts on cardiovascular health over time.

Scientists hypothesize that these disturbances trigger a series of negative effects that enhance the risk of developing chronic heart conditions, including hypertension, atherosclerosis, or even heart failure.

Tips to Protect Your Heart and Improve Your Sleep

In order to protect your heart, experts recommend several proactive measures to improve your sleep patterns and lifestyle. First, maintain a regular sleep schedule whereby you go to bed and wake up at the same time every day, including weekends. Consistency will keep your body's internal clock in check.

Along with regulating your sleep, paying attention to your caffeine habits is just as important. To reduce your risk of heart disease and stroke, experts suggest avoiding caffeine after 3 PM. If you’re sensitive to caffeine, this rule becomes even more critical.

In addition, the introduction of stress-reducing activities like yoga or mindfulness can also be beneficial to lower cortisol levels, and therefore both sleep and heart health can improve. A diet rich in antioxidants, healthy fats, and low on processed sugars also helps maintain cholesterol levels and reduce inflammation.

Does Your Sleep Environment Also Has A Role To Play

Apart from the timing of caffeine and your sleep schedule, another very overlooked factor is the quality of your sleep environment. Scientists have long known that the environment in which you sleep has a huge impact on the quality of your rest. Poor quality of sleep, even if your sleep schedule is regular, can cause health risks that are very much the same as those that arise from irregular sleep patterns.

Here’s an additional tip: make sure your bedroom is conducive to restful sleep. This means keeping your room dark, quiet, and cool. A temperature of around 65°F (18°C) is ideal for most people. Consider investing in a comfortable mattress and pillows, and avoid screen time at least 30 minutes before bed to allow your brain to unwind.

Irregular sleep, in association with taking caffeine in late parts of the day, can risk heart attack and stroke, but a simple maintenance of a sleep schedule, the reduction of consumption of afternoon caffeine, and sleep environmental awareness can definitely safeguard one's heart along with total health.

Your sleep is more than just a time for rest; it's a vital component of your long-term health, and maintaining consistency in your sleep habits is one of the best things you can do for your heart.

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Why A Persistent Cough Can Be An Early Warning Sign Of Lung Cancer: Doctors Explain

Updated Apr 10, 2026 | 12:01 AM IST

SummaryIf you are a non-smoker who is leading a healthy lifestyle and has no medical conditions other than a persistent cough, then you must visit your doctor right away, advised the experts.
Why A Persistent Cough Can Be An Early Warning Sign Of Lung Cancer: Doctors Explain

Credit: Canva

It was during the COVID-19 pandemic that Annabelle Gurwitch, an American author, actress, and television host, developed a "a little persistent cough".

Suspecting it to be a COVID symptom, Annabelle went for a check-up. Her doctor alarmingly informed her about something suspicious on her lungs. Soon after, an X-ray and a biopsy confirmed her diagnosis of stage 4 cancer.

But, here's the catch. Annabelle is a non-smoker. She also lived a healthy lifestyle and exercised every day, and felt like she was in really good health, besides the persistent little cough.

Why A Persistent Cough Can Be An Early Warning Sign Of Lung Cancer: Doctors Explain

Also read:American Author Annabelle Gurwitch Writes New Memoir On Stage-4 Lung Cancer Diagnosis

HealthandMe spoke to health experts to understand how a persistent cough signals the risk of lung cancer.

If you, too, are a non-smoker who is leading a healthy lifestyle and has no medical conditions other than a persistent cough, then you must visit your doctor right away, advised the experts.

"A persistent cough can be an early warning sign of lung cancer, especially when it shows specific features rather than behaving like a routine respiratory illness," Dr Sameer Khatri, Principal Director - Medical Oncology, Max Super Speciality Hospital, Patparganj, told HealthandMe.

The doctor noted that the cough becomes suspicious when it persists beyond three weeks without a clear cause or fails to respond to standard symptomatic treatment such as cough syrups, bronchodilators, etc.

"A change in a pre-existing smoker’s cough—for example, becoming more frequent, severe, or different in character—is particularly important. In non-smokers, a new, unexplained chronic cough should not be ignored," Dr. Khatri said.

Certain associated symptoms further strengthen the suspicion of cancer. The most significant is hemoptysis, the coughing up of blood or blood-stained mucus, even if minimal.

Other red flags include

  • unintentional weight loss,
  • chest pain,
  • breathlessness,
  • hoarseness,
  • recurrent pneumonia in the same lung region.
  • age >40 years,
  • smoking history, occupational exposures.

Persistent cough: TB Vs Lung Cancer

Persistent cough also signals the risk of tuberculosis (TB) -- the world's most deadliest infectious disease. Understanding the differences between these two causes is critical for early diagnosis and timely treatment.

Dr Seema Jagiasi from MOC Cancer Care Center told HealthandMe that the cough in TB may sometimes produce blood-tinged phlegm, but it is usually associated with signs of infection, such as fatigue and a general feeling of illness.

TB is more common in younger populations and in individuals with weakened immunity or poor living conditions.

"In contrast, a cough associated with lung cancer tends to be more insidious. It may start as a dry, persistent cough that gradually worsens over time. Unlike TB, it may not initially present with fever or infection-related symptoms," the doctor explained.

Also read: Suffering From Mid-back Pain? Doctors Say It May Be Spinal TB

One of the key differences lies in progression and response to treatment.

TB is treatable with a course of antibiotics, and symptoms often improve within weeks of starting therapy. However, a lung cancer-related cough persists or worsens despite routine medications.

Dr Jagiasi emphasized that any cough lasting beyond three weeks, especially when accompanied by alarming symptoms, should not be ignored.

"Early investigations, such as chest imaging and further diagnostic tests, can help distinguish between the two conditions," the doctor said.

While both TB and lung cancer may present with a persistent cough, their underlying causes, associated symptoms, and progression differ significantly.

The health experts called for more awareness and the need for timely medical evaluation for the effective management of the disease.

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'Game Of Thrones' Actor Michael Patrick Dies After Battle With Motor Neurone Disease

Updated Apr 9, 2026 | 08:13 PM IST

Summary​MND is a rare and progressive neurodegenerative disease. According to NHS UK, it causes muscle weakness that gets worse over a few months or years. It's usually life-shortening, and there's currently no cure, but treatment can help manage the symptoms.
'Game Of Thrones' Actor Michael Patrick Dies After Battle With Motor Neurone Disease

Credit: Michael Patrick/Instagram

Irish Actor Michael Patrick, known for his significant role in Game of Thrones, has sadly passed away at the young age of 35.

Sharing the news in a post on social media platform Instagram, his wife Naomi Sheehan shared that Michael Patrick (whom she fondly calls Mick) died after a years-long battle with Motor Neurone Disease.

"Last night, Mick sadly passed away in the Northern Ireland Hospice. He was diagnosed with Motor Neurone Disease on 1st February 2023. He was admitted 10 days ago and was cared for by the incredible team there. He passed peacefully, surrounded by family and friends," Naomi said.

Calling Michael a "titan of a ginger-haired man", she said that “Words can’t describe how broken-hearted we are".

Naomi called Michael an "inspiration to everyone."

Also read: Dismissed as Anxiety: Terry Crew’s Wife Rebecca Shares Decade-Long Struggle With Parkinson’s

What Is Motor Neurone Disease (MND)

MND is a rare and progressive neurodegenerative disease. According to NHS UK, it causes muscle weakness that gets worse over a few months or years. It's usually life-shortening, and there's currently no cure, but treatment can help manage the symptoms.

Symptoms of MND include:

  • stiff or weak hands
  • weak legs and feet
  • twitches, spasms, or muscle cramps (where muscles painfully tighten).
MND causes the nerve cells that control movement to fail, leading to progressive weakness and mobility problems.

It makes everyday tasks such as climbing stairs or gripping objects difficult.

Also read: Grey’s Anatomy Star Eric Dane Dies After ALS Battle

As the disease advances, patients may develop difficulties with breathing, swallowing, and speech, along with changes in mood or personality. In later stages, walking and movement can become extremely limited.

Treatment of MND

About 1,500 people are diagnosed with MND each year, yet treatment choices remain scarce. Only a small proportion of patients currently qualify for therapies that target the disease process itself.

MND can be difficult to diagnose in the early stages. But as the symptoms get worse, it can usually be confirmed.

Tests used to help diagnose MND include:

  • blood tests
  • tests to check how well your nerves are working
  • an MRI scan to help rule out other conditions that affect the brain and nerves
MND is of four main types:

1. Amyotrophic lateral sclerosis (ALS): Early symptoms include muscle weakness in the arms and legs can cause you to trip and drop things.

2. Progressive bulbar palsy (PBP): It mainly affects muscles in the face, throat, and tongue, causing slurred speech and problems swallowing.

3. Progressive muscular atrophy (PMA): It causes weakness in the hands.

4. Primary lateral sclerosis (PLS): Leads to weak legs, sometimes with other symptoms, including speech problems.

Common treatment options for MND include:

  • physiotherapy and exercises to help with muscle weakness and stiffness
  • dietary advice to help you maintain weight
  • speech and language therapist to help with talking
  • Cognitive behavioral therapy (CBT) to help cope with emotions and feelings, such as anxiety and depression.

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These Eye Symptoms May Indicate Higher-severity Long COVID

Updated Apr 9, 2026 | 05:22 PM IST

SummaryThe study, published in the journal Clinical Ophthalmology, found that nearly 60 percent of people reported new-onset of ocular symptoms. The findings showed that the new onset of eye symptoms in people with long COVID may be an indicator of more severe disease.
These Eye Symptoms May Indicate Higher-severity Long COVID

Credit: Canva

During the COVID-19 pandemic, the SARS-CoV-2 virus had a significant impact on the eyes, causing conjunctivitis (pink eye), with red, itchy, watery, or painful eyes.

A new study now shows that eye symptoms may also be key in understanding the severity of long COVID, a collection of symptoms that last three months or longer after your first COVID symptoms.

The new study, published in the journal Clinical Ophthalmology, showed that the new onset of eye symptoms in people with long COVID may be an indicator of more severe disease.

Also read: Long Covid Causes Lasting Brain Inflammation And Lung Injury, Reveals Study

Key Findings

Researchers from the Yale School of Medicine analyzed survey data from 595 adults who self-reported having long COVID in surveys conducted from May 2022 to October 2023. They found that nearly 60 percent of people reported new-onset of ocular symptoms.

The findings suggest that ocular symptoms in long COVID may be interpreted as vision-related manifestations that cluster with systemic post-COVID conditions. The symptoms include a new onset of :

  • blurred or lost vision,
  • dry eyes,
  • floaters or flashes
The study showed that participants with long COVID-related ocular symptoms also had poorer general health and experienced more severe peaks in long COVID symptom severity compared to those without such symptoms. They also reported a greater financial burden and more difficulties in pursuing everyday life.

Notably, individuals with ocular symptoms reported:

  • A greater overall symptom burden,
  • Financial difficulties,
  • Challenges in everyday life.
The study suggests that healthcare providers should recognize this presentation, inquire about ocular symptoms as part of a comprehensive long COVID assessment, and consider associated systemic conditions when determining management strategies.

Also read: Long COVID: The Story Of Those Who Are Still Dealing With Symptoms And Illnesses

What is Long COVID

Long COVID includes a wide range of symptoms or conditions that may improve, worsen, or be ongoing. While anyone who gets COVID-19 can develop Long COVID, studies have shown that some groups of people are more likely to develop Long COVID than others, including:

  • Women
  • People who have experienced more severe COVID-19 illness, especially those who were hospitalized or needed intensive care
  • People with underlying health conditions
  • People who did not get a COVID-19 vaccine

While many of the Long COVID conditions remain to be fully recognized, some people have more than one symptom that can be moderate to severe, and also impact the quality of life. According to the US CDC, they include:

  • Tiredness or fatigue
  • Difficulty thinking or concentrating (sometimes called “brain fog”)
  • Shortness of breath or difficulty breathing
  • Headache
  • Dizziness on standing
  • Fast-beating or pounding heart (known as heart palpitations)
  • Chest pain
  • Cough
  • Joint or muscle pain
  • Depression or anxiety
  • Fever
  • Loss of taste or smell
Some people also experience damage to multiple organs, including the heart, lungs, kidneys, skin, and brain.

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