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.
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.
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.
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.
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.
Credits: Harm and Evidence Research Collaborative and Association for Women In Science
This common pregnancy drug could be linked to cancer. Wes Streeting has been urged to launch a public inquiry into a miscarriage drug called Diethylstilbestrol, which, reports say has "ruined and devastated" the lives of countless women. On Monday, the Health Secretary Streeting met victims of the pregnancy drugs, which has been linked to cancer, early menopause and infertility.
Diethylstilbestrol, commonly known as DES, is a synthetic form of female hormone estrogen, which was prescribed to thousands of pregnant women from 1940 to 1970s.
The drug was used to prevent miscarriage, premature labor and complications of pregnancy. This was also used to suppress breast milk production, as an emergency contraception and to treat symptoms of menopause.
In 1971, Diethylstilbestrol (DES) was linked to a rare cancer of the cervix and vagina known as clear cell adenocarcinoma, prompting US regulators to advise that it should no longer be prescribed to pregnant women. Despite this, the drug continued to be given to expectant mothers across parts of Europe until 1978. DES has also since been associated with other cancers, including breast, pancreatic and cervical cancers, The Telegraph reported.
Campaign group DES Justice UK (DJUK) is now urging Health Secretary Wes Streeting to order a public inquiry and introduce an NHS screening programme to identify people who may have been exposed to the drug before birth.
Victims described DES as “one of the biggest pharmaceutical scandals this country has ever seen,” warning that “the impact of this terrible drug cannot be underestimated as it has ruined and devastated so many lives,” according to The Telegraph.
In November, Streeting acknowledged that the “state got it wrong” and issued an apology to those affected. He also advised anyone who believes they may have been exposed to DES to speak to their GP.
Susie Martin, 55, from Manchester, whose mother was prescribed DES during pregnancy, told The Telegraph she has undergone between 20 and 30 operations as a result of the drug’s effects.
“The impact of this terrible drug cannot be underestimated as it has ruined and devastated so many lives, including my own,” she said. “The physical and emotional pain has been unbearable. I live with a constant fear that I will need more surgery or develop cancer—and I am far from the only one.”
Calling DES a “silent scandal,” Martin said she hopes the government’s engagement will lead to concrete action. “While I welcome Mr Streeting meeting us, it will only matter if he commits to meaningful steps for victims of this shameful chapter in British medical history, including a screening programme and a full statutory public inquiry,” she added.
The Telegraph reported that compensation schemes have been set up for DES victims in the US and Netherlands, however, UK does not have one yet.
"There are harrowing accounts of harm caused by the historic use of Diethylstilbestrol (DES). Some women and their relatives are still suffering from the associated risks of this medicine which have been passed down a generation, and haven’t been supported. The Secretary of State has been looking seriously at this legacy issue and carefully considering what more the government can do to better support women and their families who have been impacted. NHS England has alerted all cancer alliances to this issue so that healthcare professionals are aware of the impacts of DES and the existing NHS screening guidance which sets out the arrangements for those who show signs and symptoms of exposure,” said a Department of Health and Social Care spokesman to The Telegraph.
Credits: Canva/Amazon
The World Health Organization (WHO)'s Montreal meeting focused on wearable technology like smartwatches and activity trackers as a reliable source of health tracking. The meeting discussed that wearables could in fact generate objective real-time data, which helps governments design targeted and evidence-based health interventions.
Physicians in the Montreal meetings discussed that wrist-worn devices are more reliable than traditional self-reported surveys. This is because the self-reported surveys could underestimate the levels of physical inactivity.
“Metrics such as step count, moderate-to-vigorous physical activity and sedentary time directly correlate with cardiovascular disease, diabetes and mental health outcomes. Having population-level data allows for early and preventive strategies,” said Dr Venkat Nani Kumar, consultant in internal medicine.
Doctors in India have welcomed this shift to wearable devices as a better way to generate data and make policies. Dr Kiran Madhala, professor at Gandhi Medical College, Secunderabad, said WHO’s shift reflects rapid advances in artificial intelligence and digital health tools, calling it a progressive step towards improved monitoring of physical activity worldwide.
City-based doctors also underlined the need for inclusive validation of devices. “Wearables must recognise varied movement patterns and step equivalents, especially in ageing populations,” a physician said, while stressing the importance of data privacy and ethical use of health information.
As per a 2022 study published in JMIR MHealth and UHealth, wearables refer to devices that are worn by individuals. In health care field, they assist with individual monitoring and diagnosis. Wearables are “seamlessly embedded portable computers...worn on the body," notes another 2018 study published in Telematics Informatics.
A 2018 study published in the journal Sensors noted that wearable health devices are increasingly helping people to better monitor their health status both at an activity/fitness level for self health tracking and at a medical level providing more data to clinicians with a potential for earlier diagnostic and guidance of treatment.
This is a blood pressure monitor that consists of a cuff that is placed in upper arm with a digital display that provides real time reading of systolic and diastolic blood pressure.
This device estimates your glucose levels in every few minutes. It can be worn in upper arm, with a phone sensor connected to measure readings. It also includes real time glucose alarms to make informed decisions.
ECG patches are interconnected with smartphones, where one can see their readings. They not only measure electrocardiograms, but also detect any abnormalities.
Smartwatches or fitbits that could be worn on your wrist. They help track real time data of your health, steps, heart rate, calorie consumptions, and even sleep patterns. It can also help keep track of oxygen levels.
These activewears come with microscopic sensors to safeguard wearer's body or assist them in reaching their fitness objective.
Credits: Canva
Epilepsy affects more than 15 million people in India, yet it remains one of the most misunderstood neurological conditions. Despite being a treatable brain disorder, fear, stigma and long-standing myths continue to delay diagnosis and care, especially in smaller towns and rural areas. Doctors say this lack of awareness often causes more harm than the condition itself.
According to the World Health Organization (WHO), nearly 50 million people worldwide live with epilepsy, making it one of the most common neurological disorders. The WHO also estimates that up to 70 per cent of people with epilepsy can live seizure-free if properly diagnosed and treated. Yet, in low- and middle-income countries, almost three-fourths of patients do not receive the treatment they need.
Dr Madhukar Bhardwaj, Director and Head of Neurology at Aakash Healthcare, explains that epilepsy occurs due to a sudden disturbance in the brain’s electrical activity. “A seizure happens when the brain’s electrical signals stop working normally for a short time,” he says.
This can cause a wide range of symptoms, from jerking movements and falling unconscious to staring spells or brief confusion. “Some seizures last just a few seconds and may go unnoticed, while others can be severe,” Dr Bhardwaj adds.
Despite medical clarity, myths around epilepsy remain deeply rooted. Dr Bhardwaj points out that many people still believe epilepsy is caused by ghosts, black magic, or divine punishment. “Others think it spreads by touch or that people with epilepsy cannot study, work or get married,” he says.
One of the most dangerous misconceptions is putting an object into a person’s mouth during a seizure. “This is completely false and can seriously injure the patient,” Dr Bhardwaj warns. Doctors stress that epilepsy should be treated like any other chronic condition, such as diabetes or high blood pressure, not as a social taboo.
Dr Neha Kapoor, Associate Director and Head of Neurology at Asian Hospital, says epilepsy does not have one single cause. “In many cases, we are unable to find an exact reason,” she explains. However, known causes include genetic factors, head injuries from accidents, brain infections like meningitis, strokes, and other forms of brain damage.
In children, epilepsy may result from lack of oxygen at birth or abnormal brain development before birth. Dr Kapoor also clarifies a common misunderstanding: “Stress, lack of sleep, and alcohol can trigger seizures, but they are not the root cause of epilepsy.”
Not all seizures look dramatic, which leads to frequent delays in diagnosis. “Not all seizures involve shaking,” says Dr Praveen Gupta, Chairman at Marengo Asia International Institute of Neuro and Spine (MAIINS). “Some look like daydreaming or sudden confusion, which is why epilepsy is often missed.”
Dr Gupta notes that many patients reach specialists very late due to fear and misinformation. “With timely treatment, most people with epilepsy can live completely normal lives,” he says.
Nearly 70 per cent of epilepsy patients can control seizures with regular medication, according to doctors. For those who do not respond to medicines, known as drug-resistant epilepsy, advanced treatment options are now available in India.
“Epilepsy surgery is being used successfully,” Dr Gupta explains. “We carefully identify the part of the brain causing seizures and treat it safely. This can greatly reduce or even stop seizures.” He adds that modern surgical and neuro-robotic techniques are changing outcomes and offering renewed hope.
Epilepsy can also affect aspects of life that are rarely discussed, including sexual health. Dr Vineet Malhotra, Principal Consultant at SCM Healthcare, says seizures, stress and some anti-seizure medications may impact energy levels, hormones and sexual desire in men.
“However, these issues are manageable,” Dr Malhotra says. “With counselling, lifestyle changes and medication adjustments, patients can lead healthy, active and fulfilling lives.”
Doctors agree that awareness, early diagnosis and breaking myths are key to ensuring epilepsy is treated as what it truly is, a manageable medical condition, not a social label.
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