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

Updated Dec 11, 2024 | 04:56 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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Preeclampsia May End With Pregnancy. Your Heart Risk May Not

Updated Sep 22, 2026 | 03:34 PM IST

SummaryPreeclampsia typically resolves after pregnancy, but it can signal higher long-term cardiovascular risk, making ongoing heart-health monitoring important for affected women.
Preeclampsia May End with Pregnancy. Your Heart Risk May Not

Credit: AI

Most women who've had preeclampsia remember it as something that happened during pregnancy. The blood pressure spiked, doctors kept a close watch, the baby arrived, and everything went back to normal.

Case closed, or so it seems. But there's a quieter part of this story that doesn't get told nearly enough - what preeclampsia might mean for a woman's heart years down the line.

So, What Is Preeclampsia?

It's a condition that can happen after the 20th week of pregnancy, when blood pressure rises sharply and starts putting pressure on organs like the kidneys or liver. During preeclampsia, the lining of blood vessels - the endothelium - becomes inflamed and doesn't relax and dilate the way it normally should.

This is the same vessel dysfunction we see in the early stages of coronary artery disease, just decades ahead of schedule. Doctors usually catch it through routine checks - protein in the urine, sudden swelling, or blood pressure readings that don't sit right.

Once the baby is delivered, blood pressure almost always comes back down. That "return to normal," though, doesn't mean the story is over.

Also read: Vitamin D & Pregnancy: Could Vitamin D Deficiency Increase Risk Of Premature Birth?

A Pregnancy Complication with a Long Impact on Heart

Think of preeclampsia as an early stress test that the heart didn't quite pass. It is associated with increased risk of hypertension in future and also increase the risk of heart failure, stroke and cardiovascular diseases. And this isn’t a risk that shows up only in old age, in some cases, death happens within the first 10 years after pregnancy.

The risk of heart failure also increases by four-fold and the risk of coronary heart disease by two folds in patients with preeclampsia. The risk of ischemic heart disease and hypertension is elevated too. The risk increases further if preeclampsia occurred early in pregnancy, during multiple pregnancies, or alongside other factors like obesity or a family history of heart disease.

It highlights the importance of life law monitoring of cardiovascular rest factors in a woman who has history of preeclampsia.

Also read: PMOS Isn't Just About Periods Or Pregnancy: Why Women Need To Think Beyond Fertility

The Part of Care That Often Gets Skipped

Once the baby is here, attention naturally shifts entirely toward the newborn - and a new mother's own follow-ups tend to fall away quietly, usually right after that standard six-week check. That's the gap, we need to close in postpartum care. Women with a preeclampsia history should regularly monitor their blood pressure, cholesterol and blood sugar, and actually bring these numbers up during the consultation.

None of this means preeclampsia guarantees heart disease down the road. It just means the risk picture has shifted, and that's worth knowing. Staying active, eating well, keeping weight in check, and staying away from smoking helps reduce the risk.

More obstetricians and cardiologists are starting to treat preeclampsia as something to track for life, not just for nine months. That shift in thinking could end up protecting a lot of hearts long after the pregnancy itself is over.

By Dr Waseem Farooqui, Consultant, Interventional Cardiology, Cardiac Care, Medanta Hospitals, Noida

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Is Controlling BP Enough After a Brain Bleed? Doctors Explain How to Prevent Another Stroke

Updated Sep 22, 2026 | 04:20 PM IST

SummaryAfter a brain bleed, consistent BP control, medication, lifestyle changes and follow-ups are crucial. Neurologists explain warning signs and when sudden BP rises need urgent care.
Is Controlling BP Enough After a Brain Bleed? Doctors Explain How to Prevent Another Stroke

Credit: AI Generated Image

After a brain bleed, controlling blood pressure is crucial—but is it enough to prevent another stroke? Neurologists explain why consistent BP monitoring, regular medicines, lifestyle changes, and follow-ups matter after discharge. They also share warning signs families should never ignore and when sudden BP rises require urgent medical attention.

Is Blood Pressure Control Enough After A Brain Bleed?

Dr Shubha Subramanian - Senior Consultant - Neurology - Kauvery Hospital, Vadapalani, Chennai told Health and Me, "After a brain bleed, controlling BP is extremely important, but this is only for spontaneous intracerebral haemorrhage, not in cases of an AV malformation, an aneurysm-related bleed, or a traumatic bleed, where the aetiology is different." He added, "In case of idiopathic spontaneous intracerebral haemorrhage, probably because of BP fluctuations or high BP, in that case, for secondary prevention, there will be a reduced number of bleeds if the BP is well controlled. Consistent control is very, very important."

Also Read: CagriSema Beats Lilly’s Mounjaro & Zepbound In New Trial: All About Novo’s Next-Gen Obesity Drug

After a brain bleed, patients should regularly monitor blood pressure and pulse, with diabetics also checking blood sugar at home. Periodic blood tests and ECGs may be advised. Families should watch for confusion, seizures, weakness, changes in speech, or facial drooping. Recognising these warning signs early and maintaining consistent BP control can help prevent another bleed.

The Common Mistakes That Can Raise The Risk

"Common mistakes include missing medications, not monitoring blood pressure regularly, stopping follow-up visits when they are feeling better, smoking and consuming too much alcohol, and returning too soon to strenuous activity," said Dr. Soniya Tambe, Consultant, Neurology, Fortis Hospital, Bannarghetta Road, Bengaluru. She added, "Patients also may ignore symptoms such as severe headache, weakness, speech difficulty, or vision changes. These signs should never be dismissed."

What To Eat And Avoid During Recovery

Recovery after a brain bleed doesn’t stop when a patient leaves the hospital. The steps taken at home are equally important in reducing the risk of another stroke. Along with taking medicines as prescribed and keeping blood pressure under control, patients should focus on making healthy, long-term lifestyle changes rather than following temporary restrictions.

A balanced, low-salt diet can support recovery, while smoking and alcohol should be avoided. Patients should ease back into physical activity gradually and only with their doctor’s advice, especially in the early recovery period. Getting enough sleep, maintaining a healthy weight, and managing stress are also important. Regular follow-ups help monitor blood pressure and other heart-related risk factors.

Warning Signs Families Should Never Ignore

Dr. Praveen Chander, Senior Consultant Neurology, Gleneagles Chennai, told Health and Me, "Families should also recognise sudden weakness or numbness, difficulty speaking, confusion, loss of balance, severe headache, or sudden vision changes as possible warning signs. These symptoms require immediate medical attention rather than waiting for them to settle."

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US Gen Z, Millennials Are Drinking Less Alcohol For First Time Since COVID-19

Updated Sep 22, 2026 | 05:03 PM IST

SummaryAlcohol use among Gen Z adults fell by more than 5%, millennials also recorded a drop in heavy drinking, at 17% between 2022 and 2024. In contrast, alcohol use increased among adults aged 50-64 by nearly 4%, while heavy drinking increased by more than 36%.
US Gen Z, Millennials Are Drinking Less Alcohol For First Time Since COVID-19

Credit: iStock

Alcohol use among US adults has declined for the first time since the COVID-19 pandemic began, driven largely by Gen Z and millennials, a new study found.

However, alcohol use remains above pre-pandemic levels, according to the findings published in the Annals of Internal Medicine.

"It’s encouraging to see alcohol use decline for the first time since the start of the pandemic,” said Brian P. Lee, a hepatologist and liver transplant specialist with Keck Medicine at the University of Southern California and principal investigator of the study.

“However, use remains above pre-pandemic levels and certain groups continue to have concerning trends," he added.

What Did The Study Find?

Also read: BORG Drinking Trend: Why These Viral Alcohol Jugs Can Be Dangerous

Researchers analyzed National Health Interview Survey data from 114,352 US adults between 2018 and 2024.

Heavy drinking was defined as five or more drinks per day or 15 or more drinks per week for men, and four or more drinks per day or eight or more per week for women, in the 12 months before the survey.

From 2022 to 2024, any alcohol use fell by nearly 2%, while heavy drinking declined by more than 8%.

Researchers said this was the first confirmed reduction in alcohol consumption since the pandemic began, following increases in drinking reported in previous studies.

Gen Z, Millennials Cut Back As Older Adults Drink More

The biggest decline in any alcohol use was among Gen Z adults, whose consumption fell by more than 5%.

Millennials recorded the largest drop in heavy drinking, at 17% between 2022 and 2024.

The study did not examine why younger adults reduced their drinking, though researchers noted that changing social attitudes toward alcohol may be one explanation.

In contrast, alcohol use increased among adults aged 50-64. From 2018 to 2024, any alcohol use in this group rose by nearly 4%, while heavy drinking increased by more than 36%.

According to Lee, the increase is particularly concerning because older adults face higher risks of alcohol-related conditions, including liver disease, certain cancers and cardiovascular disease.

"Heavy drinking among ages 50-64 is up by more than a third since 2018, a concerning trend because this age group faces some of the greatest risks of harm from alcohol, including cirrhosis and alcohol-related cancers,” Lee said.

Men saw a larger decline in any alcohol use than women, 2.4% versus 1.1%. However, heavy alcohol use fell more among women than men, 9% versus 7.7%.

Lee noted that understanding differences in drinking patterns could help develop more effective prevention and treatment strategies.

Read More: Heart Diseases, Mental Disorders And Cancer Among 62 Health Risks Linked To Alcohol Use: Study

Does Drinking Less Reverse Alcohol-Related Harm?

Excessive alcohol consumption is one of the leading preventable causes of illness and death in the US, according to the Centers for Disease Control and Prevention.

Alcohol accounts for approximately half of all liver-related deaths, while alcohol-associated cirrhosis has become the leading cause of liver transplants, according to Lee.

The World Health Organization says health risks begin with the first drop of alcohol, meaning no level of consumption is completely safe or risk-free.

Although the decline in alcohol use is a positive development, "we cannot assume alcohol-related harms will decline automatically,” said Lee. “Continued attention to screening, prevention and treatment will be critical, particularly among groups where alcohol use remains elevated.”

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