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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Former AIIMS Director Dr Randeep Guleria Explains Essential Vaccines Every Adult Should Take

Updated Apr 13, 2026 | 02:44 PM IST

Summary​According to the World Health Organization (WHO), immunization currently prevents 3.5 million to 5 million deaths every year from diseases like diphtheria, tetanus, pertussis (whooping cough), influenza, and measles.
Former AIIMS Director Dr Randeep Guleria Explains Essential Vaccinations Every Adult Should Take

Credit: Canva/Instagram

Vaccination has been the most powerful and effective tool in modern medicine that improves the body's immune system and fights off diseases, saving millions of lives annually.

Vaccines reduce the risk of getting a disease by working with your body’s natural defenses to build protection. Vaccines are available to prevent more than 30 life-threatening diseases and infections, helping people of all ages live longer, healthier lives.

According to the World Health Organization (WHO), immunization currently prevents 3.5 million to 5 million deaths every year from diseases like diphtheria, tetanus, pertussis (whooping cough), influenza, and measles.

Also Read: Cancer-Hit US Couple Opens Up On ‘Nightmare’ Experience

While vaccines are available for both young and old, former director of AIIMS New Delhi, Dr Randeep Guleria, in a post on social media platform Instagram, urged doctors to recommend these based on people's age and the presence of comorbidities.

“Two very important factors one has to consider when recommending a vaccine for the adult population. One is the age, and if you have a patient over the age of 60 years, vaccination is definitely something you should recommend, or if a patient has associated comorbidities which increase the chance of vaccine-preventable diseases,” said the noted pulmonologist from Medanta Hospitals, Gurugram, in a Doctor's Special Series.

He recommended doctors to prescribe six types of vaccines for adults, namely:

  • Influenza Vaccine
Dr. Guleria recommended an annual influenza vaccine for elderly people.

“It can be given as a pre-winter vaccine, which is a northern hemisphere vaccine, or it can be given in May or June when it is a southern hemisphere vaccine,” he added.

A flu vaccine typically reduces the risk of influenza infection, prevents severe illness, and complications.

Also read: This Common Vaccine At Higher Dose Can More Than Halve Alzheimer’s Risk In Older Adults

  • Pneumococcal Vaccine
A pneumococcal vaccine protect against Streptococcus pneumoniae bacteria, which cause serious infections like pneumonia, meningitis, and bloodstream infections.

“For the pneumococcal vaccine, we now have a conjugate vaccine, which is available as PCV20, which is once in a lifetime, and that has made things much more easier,” Dr. Guleria said.

The PCV20 vaccine guards against 20 strains of pneumococcal bacteria. It also prevents serious pneumonia, invasive infections, and related complications. It is recommended for adults aged over 65 and those with weakened immune systems.

  • Shingles Vaccine
The shingles vaccine is usually recommended after the age of 50 years, and two doses are required, Dr. Guleria said.

The vaccine against shingles prevents the risk of viral infection that causes a painful rash and nerve damage. It also helps prevent long-term nerve pain and prevents serious complications from shingles. The vaccine is safe for adults 50 and older.

  • Tdap vaccine
A Tdap vaccine is recommended for adults over the age of 60 years.

The Tdap vaccine protects against pertussis infection, also known as whooping cough. It guards against tetanus infections and reduces the risk of diphtheria and related complications.

  • HPV vaccine
The HPV vaccine is for women to prevent cervical cancer, and it is now being given by the government as a part of the cancer prevention program, Dr Guleria said.

Beyond cervical cancer, the HPV vaccine also protects against anal and throat cancer. It prevents 90 percent of HPV-related cancers, is safe, and effective. It also prevents genital warts.

Also read: Health Tests Every Woman Should Do Once A Year

  • Region-specific vaccination
“It's also important for us to look at vaccination when we look at travelers, especially those who are going to crowded areas. So, people going to crowded areas, whether it be a Kumbh Mela, whether it be Hajj, or whether it be going to parts of Africa, should also take vaccinations to prevent themselves from getting illnesses in that area," Dr Guleria said.

Also read: How Vaccinations Help Build Immunity? List Of Vaccines You Should Get

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7 Fever Mistakes Every Parent Should Avoid: Pediatrician Breaks It Down

Updated Apr 13, 2026 | 05:00 PM IST

SummaryDr. Ravi Malik shares essential fever facts every parent should know—from proper sponging methods to hydration and common myths—making fever management simpler, safer, and less stressful.
7 Fever Mistakes Every Parent Should Avoid: Pediatrician Breaks It Down

Credit: Canva

For most parents, even a slight rise in temperature can feel alarming. The instinct is to act quickly: cooling up the body, layering up, or trying every home remedy possible. But not everything we’ve grown up hearing about fever may actually be correct.

In a post on social media platform Instagram Dr. Ravi Malik, a New Delhi-based Pediatrician shared few simple, and scientific facts that can make managing fever far less stressful and far more effective.

Cold Water Isn’t The Answer

Cold water isn’t the answer

The use of cold water sponging is one of the most frequently used methods against fever. However, it can turn out to be counterproductive. Very cold water may cause discomfort and might even induce shivering, which results in increased body temperature instead of reduced one. Therefore, the safest and most efficient way of cooling the body down gently is by using the water from a normal tap.

Light Clothing Helps The Body Regulate

It may appear to be a good idea to cover a child with fever, but overdressing inhibits the heat from escaping. In fact, the body must be given a chance to release heat, and clothes that are too heavy prevent that. Clothes that are loose and made of fabrics that allow better air circulation facilitate the body's natural temperature regulation.

Light clothing helps the body regulate

Don’t Rush To Sponge At 100°F

There are times when a temperature increase should not be considered a problem. Sponging a fever of about 100°F is not necessary and could be painful. Fever is the body's way of fighting infection, and mild fever does not always need the application of strong cooling measures.

Hydration Is Key

Hydration is key

Fever makes the body lose fluids at an increased rate which can rapidly lead to dehydration. Therefore, providing fluids is absolutely essential to the care process. It does not matter whether it is water, milk, or any other liquid - giving the child plenty of fluids is the first step towards healing and is also a means of temperature control from the inside.

Sponging Should Be Full-body

When sponging, concentrating only on the forehead is clearly insufficient. Fever is a systemic response, not a localized one. So gentle, full-body sponging especially on areas like arms, legs, and torso will enable more efficient cooling.

Fans And ACs Are Not The Enemy

A player in the span of fever myths is that a fan or air conditioning must be turned off. However, in fact, a well-ventilated, comfortably cool room actually helps the body relax. It is perfectly okay to continue running the fan or AC, as long as the room is not excessively cold.

Not every temperature is a fever

Not Every Temperature Is A Fever

A temperature of 99°F often causes unnecessary panic, although it is not a real fever. Being aware of this helps prevent overreaction and allows parents to keep their eyes on the actual symptoms rather than just numbers.

The Takeaway

Dr. Ravi Malik, also the Chairman of Radix Healthcare, points out that handling fever isn't about short-term fixes, but rather about understanding and taking care. When the method is correctly followed - mild cooling, enough water intake, and a composed state of mind fever is much less challenging. And quite often, it is as beneficial to know what not to do as knowing what to do.

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Cancer-Hit US Couple Opens Up On ‘Nightmare’ Experience

Updated Apr 13, 2026 | 11:28 AM IST

SummaryWhile Spencer Eddy’s dizzy spells were diagnosed as medulloblastoma, his wife Jolene’s pea-sized lump under her armpit was found to be breast cancer. The parents of three children struggled through their cancer journey and now have no evidence of cancer.
Cancer-Hit US Couple Opens Up On ‘Nightmare’ Experience

Credit: Canva

A Cancer-hit US couple in North Dakota has shared their ‘nightmare’ experience with dual diagnosis of the deadly disease and parenting their three children.

Spencer Eddy, a 39-year-old father of three, suffered from dizzy spells for years. While doctors dismissed the condition as vertigo, it turned out to be a brain tumor, People reported.

MRI scans in April 2024 revealed that he had a tumor the size of a lime in his brain. Further scans and tests at Mayo Clinic in October confirmed medulloblastoma -- a malignant tumor that is located on the part of the brain that controls coordination and movement.

According to the Mayo Clinic, it is most common in children, but can occur in adults.

“When we found out that Spencer had a brain tumor, we were terrified,” said Jolene, his wife. “They said the cancer was blocking the fluid that flows from your vein to your spinal cord. They said they didn't know how he was still walking and talking, and how he hadn't had a stroke."

A week later, Spencer underwent a 10-hour surgery, and doctors were able to remove 85 percent of the tumor. Along with radiation and chemotherapy, he also needed speech and physical therapy to relearn how to walk and talk, People reported.

What came as a double blow to the couple was Jolene’s breast cancer diagnosis in April 2025.

“Whilst we were in the hospital, I noticed a small pea-sized lump under my armpit, but I put it to the back of my mind, because of everything that was going on with Spencer,” she recalled. “Doctors said it was probably just a cyst, but I asked for it to be removed anyway, and when it came back from testing, I found out it was breast cancer. I was absolutely floored.”

The doting parents “were so devastated and scared about what would happen to their kids”, if both of them die.

Following her diagnosis, Jolene was given hormone blockers and underwent a double mastectomy while Spencer was still undergoing chemotherapy.

Jolene struggled after the surgery and was vomiting and passing out frequently. She ultimately needed a blood transfusion and was able to recover.

It was hard for Jolene to take care of the family as Spencer could not walk well or drive.

"We're living most people's nightmare, but we're feeling optimistic about the future,” she said. “We have a long life, and we're going to fight for it; we're not going to give up.”

Spencer completed treatment in April 2025 and now has no evidence of cancer. Jolene also has no evidence of cancer. The couple now goes to appointments with their oncologists together as they hope to ensure their tumors don't grow back, the report said

Can A Brain Tumor Cause Dizziness?

While dizziness by itself is not a common symptom of a brain tumor, some tumors can trigger headaches and bouts of nausea and vomiting that may be associated with a dizzy feeling.

Dizziness, also called vertigo, is however, associated with tumors that develop in the cerebellum—the part of the brain that controls movement.

Medulloblastoma, a type of brain tumor, forms when cells in the cerebellum develop changes in their DNA. These changes cause the cells to grow and multiply quickly, as per the Mayo Clinic.

Common signs and symptoms of medulloblastoma may include:

  • Dizziness.
  • Double vision or other vision changes.
  • Headaches, which are often worse in the morning.
  • Nausea or vomiting.
  • Poor coordination.
  • Tiredness.
  • Difficulty with balance or an unsteady walk.

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