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.
Credit: AI generated image
While the confirmation of the Andes strain of hantavirus behind the outbreak aboard the cruise ship MV Hondius in the South Atlantic has raised significant concerns of human-to-human transmission, experts from the International Hantavirus Society, as well as the World Health Organization (WHO), stated that the situation does not raise the risk of a pandemic.
So far, eight cases have been reported, including three deaths. The WHO has also confirmed that six cases have tested positive for the Andes virus, which can spread from person to person, through PCR testing.
The International Hantavirus Society, in a statement, warned that the virus differs significantly from most other hantaviruses because it can spread between people.
Founded in 2001, the Hantavirus Society is a global organization of scientists, clinicians, and researchers focused on studying hantaviruses, including their ecology, pathogenesis, and prevention.
“The virus on board the MV Hondius is the Andes strain of hantavirus. It is serious,” said the WHO DG in an open statement on the social media platform X.
However, the WHO and the members of the Hantavirus Society maintained that the current outbreak is not another COVID-19 outbreak.
So, first, let us understand all about the Andes Virus.
The Andes virus is a rare but highly dangerous pathogen of hantavirus, found primarily in Argentina and Chile. It is the only type of hantavirus known to man to spread among humans.
Unlike many hantaviruses seen in Europe, Asia, and North America, which are typically transmitted from infected rodents to humans, the Andes virus has repeatedly shown evidence of person-to-person spread.
As per experts, transmission usually occurs in situations involving prolonged or close contact. But how close is a question that has been recurring. The Hantavirus Society answers this.
“Over the past decades, multiple outbreak investigations, household clusters, nosocomial events, and genomic analyses have provided convincing evidence that ANDV can be transmitted between individuals under specific close-contact conditions. These may include household exposure, intimate contact, caregiving without suitable personal protective equipment, and prolonged exposure in poorly ventilated or crowded settings,” it said.
Pointing out decades of outbreak investigations, hospital clusters, and genetic studies, experts emphasized: “Human-to-human transmission of Andes virus should no longer be considered hypothetical”.
The scientists stressed that current evidence does not suggest the virus spreads easily through casual community interaction in the way diseases like measles, influenza, or COVID-19 do.
Also Read: Hantavirus Outbreak: How MV Hondius Passengers Will Be Screened And Evacuated
But the Andes virus is associated with hantavirus pulmonary syndrome (HPS) — a severe respiratory illness that can rapidly become fatal. Reported fatality rates range from 20% to 40%, depending on the outbreak setting, quality of medical care, and surveillance capacity.
Recent surveillance data highlight the seriousness of the disease:
The first major indication of person-to-person transmission emerged during the 1996 El Bolsón/Esquel outbreak. More recently, the 2018–2019 Epuyén outbreak infected 34 people after a single index case attended crowded social gatherings while symptomatic.
Strict public health interventions — including isolation, quarantine, and active contact tracing — reduced transmission.
Read More: Hantavirus: Israel Confirms 1st Case as UK, Spain Probe Suspected Infections; Should You Be Worried?
The Hantavirus Society noted that a confined environment aboard the MV Hondius means that passengers and crew may still be within the virus’s incubation period.
The scientists thus warned, "A negative PCR test shortly after exposure does not necessarily rule out future infection.” They recommend “ongoing monitoring, repeat testing where necessary, and antibody testing for close contacts”.
Experts are also examining whether transmission could occur during early or minimally symptomatic stages, rather than only after obvious illness begins.
Credit: AI generated image
While thalassemia is known widely as a blood disorder, its impact can extend far beyond anemia and transfusions, said experts on World Thalassemia Day today.
World Thalassemia Day is observed every year on May 8 to raise awareness about the inherited blood disorder caused by faulty genes.
The disorder, which often requires blood transfusions every fortnight, affects approximately 1.3 million people living with severe forms of thalassemia worldwide. About 1.5 percent of the global population is carriers, and the disease claims nearly 11,000 lives annually.
Speaking to HealthandMe, health experts raised concerns about the growing mental health and neurological challenges faced by patients, especially children and young adults living with the condition.
Dr. Praveen Gupta, Chairman – Marengo Asia International Institute of Neuro & Spine (MAIINS), Gurugram, shared that repeated blood transfusions are important and save the lives of thalassemia patients, but long-term transfusion therapy can potentially lead to neurological complications if not properly monitored.
“Chronic transfusions can cause iron overload, which is the accumulation of iron in critical organs such as the brain, and may impact cognitive and psychological function, as well as mood,” Dr. Gupta explained.
He added that "changes in oxygen supply and related complications may make patients more vulnerable to headaches, lethargy, or even undetected brain injury".
However, experts stress that most neurological complications can be prevented through multidisciplinary care, iron chelation therapy, and regular monitoring.
The expert stated that thalassemia may also indirectly affect brain development in children, particularly when severe anemia continues for long periods and limits oxygen supply to the growing brain.
Dr. Gupta noted that poor oxygenation, nutritional deficiencies, iron overload from repeated transfusions, and metabolic complications may affect:
Also read: World Thalassemia Day 2026: Why Screening Before Marriage Or Pregnancy Is Important
Dr. Vipin Khandelwal, Sr. Consultant Paediatric Haemato Oncology & BMT at Apollo Hospitals Navi Mumbai, told HealthandMe that thalassemia affects the blood’s ability to carry oxygen, and prolonged disruption can impact growth, immunity, bone health, and learning abilities.
“The early signs of thalassemia are often subtle, which is why many families miss them until anemia becomes severe,” he said.
Parents should watch for persistent symptoms such as:
He stressed that while thalassemia is inherited, many serious complications can be prevented with early diagnosis, regular check-ups, timely transfusions, and proper iron monitoring.
Read More: Hantavirus Updates Of The Day: 8 May 2026 - US CDC Classifies Outbreak As 'Level 3' Emergency
Further, the experts also highlighted risk of anxiety, stress, low self-esteem, and depression among people with thalassemia who face lifelong blood transfusions, frequent hospital visits, leading to physical fatigue, and fear of complications. Over time, these challenges may increase, many often go unnoticed or untreated.
Dr. Roshan Dikshit, Senior Consultant, Haematology & Bone Marrow Transplant at Aakash Healthcare, told HealthandMe that thalassemia is not only a physical health condition, but also an emotional and psychological challenge. He stressed the need to provide mental support to thalassemic patients.
“Frequent hospital visits, lifelong blood transfusions, fear of complications, and social limitations can increase the risk of anxiety, stress, and depression, especially among teenagers and young adults,” said Dr. Roshan Dikshit, Senior Consultant, Haematology & Bone Marrow Transplant at Aakash Healthcare.
According to Dr. Dikshit, many patients struggle with:
Importantly, these emotional challenges often go unnoticed.
“Mental health support should be considered an essential part of thalassemia care. Counseling, family support, social acceptance, and open communication can significantly improve a patient’s emotional well-being and quality of life,” he said.
He also emphasized that early psychological intervention can help patients cope better with the disease and reduce the long-term mental health burden associated with chronic illness.
Conjunctivitis can spread in shared water. (Photo credit: AI generated)
For most children, a swimming pool is all about fun: summer afternoons, splashing around, and playing with friends. It feels harmless, even healthy, and in many ways, it is. But over time, a small pattern has started to show up. Parents notice it after a swimming session: red eyes, constant rubbing, and sometimes complaints of burning or discomfort that were not there before. It does not always seem serious in the beginning, which is probably why it gets ignored. Still, it keeps happening often enough to be worth paying attention to.
In an interview with Health and Me, Dr Neeraj Sanduja, Director, Viaan Eye & Retina Centre, Gurugram, explained how swimming pool time could be giving your children eye infections.
It is easy to assume the water is the issue, but that is only part of it. Most pools are treated with chlorine, which is necessary to keep them clean. The problem starts when chlorine mixes with other things that end up in the water: sweat, dirt, and even small amounts of urine. That mix creates compounds that can irritate the eyes.
Children are more likely to be affected because they spend more time in the water and often open their eyes while swimming. The natural layer that protects the eyes gets disturbed, and that is when the redness or burning starts. In some cases, it is not just irritation. If the pool is not maintained properly, there is also a risk of infections. Conjunctivitis, for example, can spread quite easily in shared water.
The signs are not always dramatic. In fact, they are easy to miss at first. A child may come back with slightly red eyes and say they sting a bit or keep rubbing them without thinking much of it. Sometimes there is watering that does not settle quickly.
If it is just mild irritation, it usually improves within a few hours. But if the redness stays, or there is itching, swelling, or discharge, it is likely to be something more than just chlorine exposure. That is usually the point at which it needs attention.
The good part is that this is mostly preventable. Swimming goggles make a difference. Not everyone likes wearing them, especially younger children, but they do help keep the eyes protected. A proper fit matters; otherwise, water still gets in.
Rinsing the face and eyes with clean water after getting out of the pool is another simple step. It helps wash away whatever is left behind. Also, children tend to rub their eyes when they feel discomfort. That only makes things worse. It is a small habit, but one that needs to be corrected gently. And then there is the pool itself. A clean-looking pool is not always a safe one. Maintenance matters more than appearance.
Most of the time, these issues settle quickly, but not always. If the same problem keeps coming back after every swim, or if the symptoms last beyond a day, it is better to get it checked. Waiting it out does not always help. Children may not always explain clearly what they are feeling. So, small changes, like avoiding light or blinking more than usual, can be signs that something is not right.
Finding the Right Balance
Swimming is still one of the best activities for children. It keeps them active, helps them relax, and is something they genuinely enjoy. The idea is not to stop it, just to be a little more careful. A few small steps can go a long way in preventing discomfort later. And once that becomes part of the routine, the experience stays what it is meant to be: fun, safe, and worry-free.
© 2024 Bennett, Coleman & Company Limited