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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Knee, Leg and Ankle Pain: Common Causes, Prevention Tips and Treatment Options

Updated Jun 22, 2026 | 10:33 PM IST

SummaryStaying active matters just as much. Regular household chores, walking, stretching and strengthening exercises, even 15 to 20 minutes a day, keep muscles strong and reduce the load on joints.
Knee, Leg and Ankle Pain: Common Causes, Prevention Tips and Treatment Options

Credit: iStock

Most people pay little attention to their knees, legs and ankles until something goes wrong. Once pain sets in, even simple things like walking, climbing stairs, or standing for long can become a real challenge. Left unmanaged, lower limb pain gradually affects mobility, independence and quality of life.

What Is Usually Behind the Pain?

Knee pain commonly traces back to osteoarthritis, ligament injuries, cartilage damage, or years of wear. Pain in the leg can be caused by muscle injuries or conditions involving nerves and poor blood flow. The pain in the ankle is commonly caused by sprains, tendinitis, arthritis, or any injury that may have occurred earlier without complete healing.

Age, obesity, sedentary lifestyles, and constant joint injuries contribute silently to the degenerative condition of the joints.

Signs That Should Not Be Ignored

Persistent pain, swelling, stiffness, or discomfort that keeps getting worse deserves attention. If pain is disturbing your sleep, that is a clear signal to see a doctor.

Habits That Help Protect Your Joints

Walking downstairs puts considerable pressure on the knees, so limiting stair use where possible is sensible. Squatting, sitting on the floor and using Indian-style toilets place similar strain and are better avoided.

Staying active matters just as much. Regular household chores, walking, stretching and strengthening exercises, even 15 to 20 minutes a day, keep muscles strong and reduce the load on joints. Focusing on the adductor muscles around the knee is particularly effective in improving joint support.

Non-Surgical Options Worth Knowing

Surgery is not always the answer. Two non-surgical treatments carried out by a pain physician can make a meaningful difference.

Platelet-Rich Plasma therapy, or PRP, involves concentrating platelets from the patient's own blood and injecting them into the affected joint. In osteoarthritis, where cartilage gradually thins, PRP may help support regeneration and ease symptoms.

Radiofrequency Ablation, or RFA, uses a specialized needle to deliver targeted heat that interrupts the nerves responsible for sending pain signals to the brain. Relief typically lasts one to two years. The procedure is done as day care with no cuts, no stitches and no anesthesia required.

A concern many patients raise is that pain stops them from exercising or losing weight. Once pain is controlled through these treatments, walking and light activity become manageable again, which in turn supports weight loss and takes further pressure off the joints.

Custom Knee Supports

Off-the-shelf knee caps have limited effectiveness. A custom-made support, designed to redistribute body weight and reduce joint stress, works considerably better, especially in early arthritis. Many patients notice relief shortly after wearing one. They are an investment, but a worthwhile one that can reduce dependence on medication while the surrounding muscles gradually strengthen.

When to See a Doctor

If pain has lasted several weeks, is worsening, or is getting in the way of daily life, it is time to consult a specialist. Early diagnosis and the right treatment can protect joint function, restore mobility and often avoid the need for surgery.

(By Dr. Aanchal Sharma, Pain Physician, Principal Consultant and Head of Department, Department of Pain Medicine at BLK MAX Hospital, New Delhi)

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COVID, H1N1 Cases Up By 30% In Mumbai: Who's At Risk And How To Prevent Infection

Updated Jun 22, 2026 | 08:00 PM IST

SummaryAs per doctors, most of the cases now are mild and can be handled with timely consultation, rest, and supporting care. But they advised older people, pregnant women, children, and those with pre-existing health conditions to take extra care and seek immediate medical advice if facing fever, cough, among others.
COVID, H1N1 Cases Up by 30% In Mumbai: Who's At Risk And How To Prevent Infection

Credit: AI generated image

Doctors in Mumbai are reporting a simultaneous rise in Covid-19, H1N1, commonly known as swine flu, and other respiratory viral infections.

As per the doctors, there is up to a 30 per cent surge in cases of COVID-19 and H1N1 as well as viral infections in the city. The doctors attributed the surge in infectious diseases to seasonal changes.

“We are currently observing a 20-30 per cent surge in Covid-19 and H1N1 (swine flu) respiratory viral infections in the city, mainly due to seasonal changes, increased humidity, and exposure to crowded places,” Dr. Aniket Mule, Consultant Internal Medicine, KIMS Hospital Thane, told HealthandMe.

Dr. Amit Saraf, Director of the Department of Internal Medicine, Jupiter Hospital, Thane, reported a rise in influenza-like illness (ILI) in the hospital.

“There is a seasonal rise in respiratory infection cases in Mumbai. Most of the people have routine viral infections, and around 10-15% of the people who are coming to OPDs have been coming positive for influenza-like illness (ILI) due to the changing weather,” Dr. Amit told HealthandMe.

Dr. Rohit Deshpande, Consultant Internal Medicine, Lilavati Hospital and Research Centre in Mumbai, told HealthandMe that the hospital is seeing a rise in swine flu cases.

“On average, 7 to 8 cases are being detected in the OPD daily. Most patients present with symptoms such as fever, cough, body ache, and fatigue”.

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What Are The Symptoms?

The experts reported that the commonly seen symptoms include:

  • persistent fever,
  • dry or wet cough,
  • sore throat,
  • fatigue,
  • body ache
  • mild breathlessness
A smaller proportion of patients are also presenting with gastrointestinal symptoms, such as nausea and weakness, particularly currently in the midst of this viral wave.

Who Is More Vulnerable?

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Dr. Amit noted that people with chronic illnesses, elderly people, pregnant women and young children are still more susceptible to complications.

Dr. Rohit noted that people with diabetes and those with conditions such as COPD, asthma and heart diseases are also at higher risk of infection.

How To Prevent?

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The experts noted that most of the cases now are mild and can be handled with timely consultation, rest and supporting care.

But older people, pregnant women, children, and those with pre-existing health conditions should take extra care. Those with an ongoing fever, cough, sore throat, breathlessness, or extreme tiredness should seek immediate medical advice, Dr. Aniket said.

“Simple preventive measures like hand hygiene, use of masks in crowded places, proper hydration and timely medical consultation can help a lot in reducing the risk of complications,” he told HealthandMe.

Preventive measures for the general population include:

  • Avoid self-medication
  • If you experience a persistent cough or breathing difficulties, consult a doctor regarding the need for anti-viral or anti-allergy medications.
  • Get vaccinated every year to boost Immunity and reduce the risk of infection.
  • Avoid crowded and dusty places, redevelopment areas, or places with pigeon droppings.
  • Use hand sanitizer, wash your hands frequently and thoroughly, and wear a mask in crowded or dusty environments
  • Do warm saline gargles with salt or betadine twice or thrice a day
  • Take steam hydration if required too
  • Maintain hydration to avoid weakness, fatigue, or headache
  • To boost immunity - consume green leafy vegetables & Vitamin C-rich fruits along with Vitamin D supplements

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That ‘Just Cosmetic’ Vein Issue Could Be Medical: What Causes Varicose Veins

Updated Jun 22, 2026 | 07:00 AM IST

Summary​Varicose veins don’t develop overnight; they are usually the result of multiple underlying factors that gradually affect vein health and blood flow.
That ‘Just Cosmetic’ Vein Issue Could Be Medical: What Causes Varicose Veins

Credit: iStock

The common perception about varicose veins is that they are merely an aesthetic or cosmetic problem. Varicose veins are indeed enlarged, twisted blood vessels that many people believe are not life-threatening. But the reality is that the condition may be a symptom of something more serious.

The disease manifests itself through insufficient blood supply in the body caused by faulty valves. As the blood vessels cannot effectively move the blood from the veins back to the heart, the blood tends to accumulate in the veins themselves. Other symptoms may include pain, heaviness, swelling, and skin sores in severe cases.

What Are The Causes Of Varicose Veins?

Varicose veins don’t develop overnight; they are usually the result of multiple underlying factors that gradually affect vein health and blood flow:

1. Valve dysfunction and poor circulation: Healthy veins rely on tiny valves to prevent backflow. When these valves weaken, blood starts collecting in the veins, leading to increased pressure and visible swelling.

2. Prolonged standing or sitting: These days, occupations require long hours of standing, which can hinder proper blood circulation and increase the risk.

3. Hormonal changes: Hormonal fluctuations during pregnancy, menopause, or while using hormonal therapies can relax vein walls, making them more prone to dysfunction.

4. Genetics: A family history of varicose veins significantly raises the likelihood of developing them, indicating a hereditary component in vein wall strength and valve efficiency.

5. Obesity and lack of physical activity: Excess body weight puts additional pressure on veins, while a sedentary lifestyle reduces the efficiency of blood circulation, leading to vein damage over time.

6. Ageing: As people age, veins lose elasticity, and valves may wear out, making older adults more susceptible to developing varicose veins.

What Are The Tips To Take Care Of?

People can manage or reverse varicose veins by:

  • Making sure blood is circulating well in the body: An inactive lifestyle or standing for long periods can lead to increased risks of vein disease. Exercise and movement, along with raising the legs, will ensure that blood continues circulating well.
  • Maintaining a healthy weight: Obesity can lead to increased pressure on the veins of the legs. Maintaining a healthy body weight is important to avoid and treat varicose veins.
  • Wear compression stockings: Compression stockings apply gentle pressure to the veins, which enables them to circulate blood effectively and avoid swelling and other conditions.
  • See a vein specialist if necessary: In cases of persistent pain, discoloration of skin, severe itching, or sores that don't heal, it is advised to see a vein specialist, as these symptoms could signal something worse.

How Can It Be Treated?

Varicose vein treatment procedures have become much easier in the modern world. Varicose veins can now be treated with minimally invasive procedures that address the problem at its root cause. These minimally invasive treatments include EVLT (Endovenous Laser Treatment), Radiofrequency Ablation (RFA), and glue ablation. A laser fibre is inserted into the varicose vein during this operation, where it effectively closes it off.

Blood is automatically redirected through other veins after this treatment, which is relatively quick and involves local anesthesia. Patients generally recover within one day. However, EVLT is much less painful, safer, and does not involve leaving scars behind.

Varicose veins are often a symptom of vein disease and thus not just a cosmetic problem. They can be a visible sign of an underlying circulatory issue. Paying attention to early symptoms and seeking medical advice can help prevent complications and improve overall vascular health. Preventing further problems is easy when one knows what to do.

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