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.
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Amid the growing burden of hypertension and related heart disease in India, a team of experts has suggested switching to potassium-enriched low-sodium salt substitutes (LSSS).
In India, more than 1 in 4 people have hypertension, and cumulatively, more than 90 per cent of adults with hypertension are either undiagnosed, untreated, or treated but live with uncontrolled hypertension. This burden needs to be tackled on an urgent basis
In view of this, experts from clinical medicine, public health, and nutrition released a consensus statement recommending potassium-enriched LSSS as an effective intervention to reduce hypertension and cardiovascular disease in India.
Current estimates show that Indians consume between 8 and 11 grams of salt (equivalent to 3.2–4.4 grams of sodium) per day, nearly double the WHO’s recommended limit of 5 grams (2 grams of sodium).
High sodium intake is a key driver of elevated blood pressure. At the same time, potassium plays a complementary role by helping counteract sodium’s effects—yet potassium intake in India remains below optimal levels.
With nearly 80 per cent of sodium intake in India coming from salt added during cooking at the household level, experts emphasized that interventions focused on reducing salt use at home can have the greatest impact.
“High-quality research shows India’s high sodium and low potassium intake is a key driver of hypertension and cardiovascular disease. Low-sodium salt substitutes address both—cutting sodium and restoring potassium, which is key to lowering blood pressure. With no change in taste and appropriate safeguards, this is a safe, scalable solution for India’s NCD prevention strategy,” Prof. Vivekanand Jha, Executive Director of The George Institute for Global Health India.
The low-sodium salt substitutes are composed of approximately 70–75 per cent sodium chloride and 25–30 per cent potassium chloride. It reduces sodium intake while increasing potassium consumption, thereby helping to lower blood pressure and reduce cardiovascular risk.
The World Health Organization (WHO), in January 2025, released guidelines recommending potassium-enriched salt to combat hypertension and related heart risks.
The WHO's guideline suggests using K-salt or potassium chloride instead of regular table salt, rich in sodium. It may reduce noncommunicable diseases (NCDs) such as cardiovascular diseases (CVDs) and chronic kidney disease by lowering blood pressure.
Also read: Two Potassium-Rich Foods That Could Lower Blood Pressure Better Than Cutting Salt
It also lowers the risks of other conditions associated with high sodium intake, such as gastric cancer. As per the WHO, every year 80 Lakh people die due to poor diet. Of these, 19 lakh deaths are attributable to high sodium intake.
These alternative salts contain less sodium than regular salt and often include potassium chloride (KCl), with or without other agents, to achieve a flavor similar to regular salt.
Evidence shows potassium - enriched low-sodium salt substitutes are a practical, effective, and scalable solution. The new consensus also marks an important shift from evidence to action, aligned with the Government of India’s commitment to reduce population-level salt intake.
India has committed to a global goal of reducing the average population level sodium intake by 30 per cent by 2030 to help prevent and control non-communicable diseases (NCDs).
While the WHO guidelines urged people to partially replace table salt with potassium, concerns have been raised about the safety of LSSS that contain potassium, because too high a level of blood potassium (hyperkalemia) may be harmful, especially to individuals with impaired kidney function.
Experts noted that potassium is safe for most people, including many with early-stage kidney disease, but maintained that caution is primarily necessary for individuals with advanced stages of kidney disease or when potassium levels are already high.
"While we have enough scientific data supporting the benefits of Low-Sodium Salt Substitutes, the evidence-to-action gap must be closed by treating LSSS as a ' dietary vaccine' to treat hypertension. It is the 'low-hanging fruit' of cardiology, a passive intervention that provides 24/7 cardiovascular protection without requiring patients to actually sacrifice the taste of their traditional diet," said Prof. Ambuj Roy, Department of Cardiology, AIIMS, New Delhi.
Also read: Pink Salt vs White Salt: What Difference Does It Make?
Dr. Sandeep Mahajan, Professor, Nephrology, AIIMS, New Delhi, added, “The potential risks of low-sodium salt substitutes are often overstated relative to their population-level benefits. While a small subset of patients—particularly those with advanced kidney disease or on specific medications—require caution, this group is clearly identifiable and can be guided through simple screening and labelling measures".
The expert noted that "nearly 90 per cent of the population can safely benefit from this intervention".
The Consensus recommends priority actions such as:
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Every month, millions of women endure painful periods and convince themselves that it is normal. However, the statistics tell a different story. Endometriosis affects about 247 million women worldwide, and nearly 42 million of those are in India alone. Yet, most of them suffer in silence for years before they get diagnosed.
Endometriosis occurs when tissue similar to the uterine lining grows outside the uterus, on the ovaries, fallopian tubes, bowel, or nearby pelvic areas. India accounts for nearly 25% of the global burden of this condition. Even with this staggering number, it remains one of the most underdiagnosed issues in women’s health.
- Pain severe enough to disrupt daily activities, work, or school
- Cramping that starts days before your period and continues after it ends
- Pain during or after intercourse
- Painful bowel movements or urination around your cycle
- Heavy or irregular bleeding
- Unexplained fatigue, bloating, or lower back pain
These are your body's warnings, not signs of weakness or something to just endure.
The Cost of Waiting
The statistics on diagnostic delays are alarming. On average, there is a 7 to 9-year delay between the first symptoms and a confirmed endometriosis diagnosis worldwide. Endometriosis affects 10–15% of all women of reproductive age and up to 70% of women with chronic pelvic pain, yet many spend nearly a decade seeing multiple doctors before anyone identifies the true cause.
This delay leads to serious consequences. The monthly natural conception rate in women with endometriosis drops to just 2–10%, compared to 20% in women without the condition. Longer delays are directly linked to more severe disease, greater psychological distress, and tougher fertility challenges.
Too many women come to me after years of being told their pain is normal. By the time they reach us, many are already dealing with advanced-stage disease.
Your pain is real, and it deserves a real answer. Do not wait, consult a specialist. Early diagnosis truly changes everything.
If your periods are affecting your quality of life, your body is asking you to listen. The sooner you seek help, the better your outcomes. Consult a specialist today. Take the first step towards a pain-free life.
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India, which carries the world's second-largest population of hemophilia cases—a genetic blood disorder—must shift towards prophylaxis care for the bleeding disorder, said health experts today on the occasion of World Hemophilia Day.
World Hemophilia Day is observed every year on April 17 to raise global awareness of hemophilia and other inherited bleeding disorders.
This year’s theme of “Diagnosis: First step to care” highlights the critical importance of diagnosis—the essential first step in treatment and care.
According to the World Federation of Hemophilia (WFH), 75 percent of people suffer from hemophilia, without even knowing it, simply because they don’t have access to basic healthcare.
Hemophilia is a rare bleeding disorder where blood does not clot properly, even for minor injuries. It is caused by an error in a specific gene on the X chromosome, leading to a deficiency or absence of clotting factors.
While the condition mainly affects males, women are the genetic carriers. In people with hemophilia, the blood lacks sufficient clotting factors -- which are proteins essential for stopping bleeding.
Whether the bleeding is external, such as cuts, or internal, such as bleeding into joints or muscles, the blood does not clot. So, it can be a very serious disorder.
Without consistent care, repeated bleeding into joints can lead to
Hemophilia is mainly of three types:
Hemophilia A, the most common type, affects about 1 in 5,000 male births, underscoring the urgent need for improved detection and awareness.
Hemophilia B, on the other hand, is an X-linked genetic disorder affecting 1 in approximately 25,000 male births.
India bears a significant burden from Hemophilia A. Estimates suggest around 136,000 individuals are affected, but only a small fraction are diagnosed and registered due to unequal access to essential care.
Dr. Varun Kaul, Professor, Dept of Pediatrics, Guru Gobind Singh Medical College & Hospital, Faridkot, told HealthandMe that in India, systemic gaps, ranging from limited diagnostic access to unevenly distributed treatment centers, continue to restrict access to RRT, especially beyond metro cities.
In contrast, more than 50 per cent of persons with hemophilia globally benefit from regular replacement therapy (RRT) as the standard of care.
Routine replacement therapy (RRT), commonly known as prophylactic care or prophylaxis, is the standard treatment for severe hemophilia.
It involves the regular intravenous (IV) infusion of clotting factor concentrates to maintain factor levels above 1 per cent to prevent spontaneous bleeding, particularly into joints and muscles.
Most Indian patients currently rely on reactive, on-demand therapy to manage bleeds after they happen.
Dr. Kaul said that although this may help prevent the immediate crisis, it fails to stop the cumulative joint damage that often results in permanent disability.
“Providing regular, scheduled infusions to maintain sufficient clotting factor levels can prevent bleeds entirely, reducing annual bleed rates by 90 per cent and enabling a life free from chronic pain and constant fear of the next bleed,” Dr. Kaul said.
Some progress is visible, as States like Karnataka, Kerala, Jammu and Kashmir, to name a few, have pioneered state-sponsored RRT programs.
“It is now imperative to transition from mere crisis management toward implementing preventive care as a National Health priority,” Dr Kaul added.
Dr Rahul Bhargava, Principal Director & Chief - Hematology, Hemato-Oncology & Bone Marrow Transplant, Fortis Memorial Research Institute, Gurugram, stressed the importance of focusing the treatment on females.
"Carrier testing in hemophilia remains largely focused on affected males, while women who may be carriers are often not included in routine screening,” Dr Bhargava told HealthandMe.
As an X-linked inherited disorder, hemophilia can present in women with low clotting factor levels, leading to
Most of the cases remain undiagnosed until a clinical event occurs.
"Identifying carriers through timely testing enables appropriate counselling and informed reproductive decisions. It also supports early diagnosis in families and reduces the risk of severe bleeding complications in future generations,” the doctor said.
Dr Tulika Seth, Professor of Haematology at All India Institute of Medical Sciences (AIIMS) in New Delhi, in a post on social media platform X, stressed the importance of testing for hemophilia.
"If a child gets prolonged bleeding from a minor cut or injury, or if there are spontaneous painful swellings in the joints after minor falls, or sometimes even by somebody holding the baby, or there's a lot of bruising, people should get the baby tested or the adult tested for hemophilia," Dr. Seth said.
She noted that in mild cases of hemophilia, sometimes a person may not be aware that they have a deficiency, and then when they go for a tooth extraction or any surgery, they may have a problem.
"So, it's important to know your family history, and if you've had any prolonged bleeding after any pain, then you should tell your doctor and get tested," the doctor said.
Dr Bhargava also called for a broader approach that includes women in screening programs to help strengthen prevention and long-term management of hemophilia across families.
Hemophilia management requires attention beyond hospital care to prevent long-term complications.
To reduce bleeding episodes, it is important to:
Other measures include
"Integrating medical treatment with lifestyle practices supports functional independence and improves overall disease control,” Dr. Bhargava told HealthandMe.
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