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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NAFLD to MASLD: Experts Explain Why This Common Yet Dangerous Liver Condition Got Renamed

Updated Apr 15, 2026 | 12:00 AM IST

SummaryA global consensus process in 2023 involving hundreds of experts from different countries adopted MASLD as it better reflected the underlying causes of the condition, such as obesity, diabetes, metabolic syndrome, hypertension, or cholesterol problems.
NAFLD to MASLD: Experts Explain Why This Common Yet Dangerous Liver Condition Got Renamed

Credit: iStock

Once widely known as non-alcoholic fatty liver disease (NAFLD), the common and dangerous fatty liver condition was rephrased as Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) due to its strong link to metabolic health issues like obesity and diabetes.

MASLD now includes patients with fatty liver disease linked to metabolic risk factors such as obesity, diabetes, and hypertension.

MASLD: So What Prompted The Change?

Globally, it was observed that all patients who have non-alcoholic fatty liver disease also have some associated form of metabolic dysfunction. The patients reported having either obesity, diabetes, metabolic syndrome, hypertension, or cholesterol problems.

And all these problems eventually lead to significant comorbidities later, like some people developed heart disease, while others developed complications of diabetes.

In view of these, a global consensus process in 2023 involving hundreds of experts from different countries adopted MASLD as it better reflected these underlying causes of the condition.

What Does MASLD Mean?

Also read: Lancet Study Shows Metabolic Liver Disease To Rise Over 38% By 2050: What’s Behind The Surge

MASLD is an umbrella term for liver conditions that develop in the presence of 1 or more cardiometabolic risk factors—including high blood sugar, elevated body mass index (BMI), and hypertension—but in the absence of other causes of liver fat accumulation.

The condition can be defined by excess liver fat accumulation (more than 5 per cent of liver weight) in the presence of metabolic dysfunction, independent of alcohol intake.

It encompasses a spectrum from simple steatosis to steatohepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma.

“Initially, it was thought that having fatty liver disease without alcohol was a benign condition, but now it is recognized that, since it is associated with lots of metabolic comorbidities, it's no longer benign,” Dr. Ashish Kumar, Professor of gastroenterology and hepatology at Sir Ganga Ram Hospital in New Delhi, told HealthandMe.

He stated that whenever a diagnosis of fatty liver is present, "we should actually include other comorbidities, like obesity, dyslipidemia, which means cholesterol problem, diabetes, sugar problem, pre-diabetes, and hypertension. At least 50–70–80 percent of these patients will have one or more of these comorbidities".

Why Alcohol Is Not The Only Culprit For Fatty Liver

Although alcohol has remained the number one risk for liver disease, MASLD seems to be rising globally, including among people who do not drink. Why?

The reasons include:

a sedentary lifestyle,

increased consumption of fast and processed food,

lack of exercise,

lack of sleep,

stressful life.

Also read: Why Regular Scans Are Crucial for Liver Cancer Patients: Doctors Explain

The experts noted that food, especially the increasingly accessible junk food or processed food, is a major culprit.

“So even if the person is not drinking alcohol, people are developing addiction to processed food, and this is causing an epidemic level of obesity and diabetes. Consequently, MASLD is also increasing, and now it is becoming the number one cause of liver disease,” Dr Kumar said.

How To Prevent MASLD?

According to Dr. Sanjay Goja, Director, Liver Transplant & HPB Surgery, Narayana Hospital, Gurugram, prevention must focus on following a healthy lifestyle like maintaining a healthy BMI, engaging in regular physical activity, and eating a balanced diet.

Controlling diabetes, cholesterol, and blood pressure is also important to prevent the risk of MASLD.

Dr Siddharth Badola, Manipal Hospital, Ghaziabad, suggested sustainable lifestyle changes such as:

Maintaining an adequate body weight: Even slight weight loss (5–10 percent) has been shown to significantly reduce liver fat and inflammation.

Follow a balanced and nutrient-rich diet: People should focus on consuming whole grains, fresh fruits and vegetables, lean proteins, and healthy fats, while limiting refined carbohydrates and processed foods.

Avoid foods with added sugar: Excess consumption of fructose, commonly found in packaged foods and sugary beverages, is a key contributor to fat accumulation in the liver.

Engage in regular physical activity: At least 150 minutes of moderate-intensity exercise per week is recommended to improve insulin sensitivity and liver health.

Manage associated metabolic conditions: Effective control of diabetes, hypertension, and dyslipidemia is essential in reducing the risk of MASLD progression.

Ensure adequate sleep and stress management: Poor sleep quality and chronic stress can negatively impact metabolic balance and liver function.

Keep your body hydrated with ample water intake and follow structured meal timings.

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World Chagas Disease Day: Women Key To Prevent, Eliminate The Fatal Neglected Tropical Disease

Updated Apr 14, 2026 | 09:01 AM IST

SummaryIf left untreated, one-third of people infected with Chagas Disease—including women and the children they carry—will develop life-altering heart, digestive, and even neurological conditions, and may even become fatal.
World Chagas Disease Day: Women Key To Prevent, Eliminate The Fatal Neglected Tropical Disease

Credit: Canva/WHO

Women can play a major role in preventing as well as eliminating Chagas Disease, a potentially life-threatening neglected tropical disease that affects 8 million people globally and causes 10,000 deaths every year, according to UN agencies.

World Chagas Disease Day is observed every year on April 14 to raise awareness around the disease, and the impact it has on lives.

In a statement, the Pan American Health Organization (PAHO) and the Global Chagas Coalition urged health authorities to make women central to the fight against the disease and to empower them to make early detection, prevention, and care.

“Eliminating Chagas disease as a public health problem requires placing women at the center of diagnosis, treatment, and care strategies,” said Dr. Jarbas Barbosa, PAHO Director.

“Ensuring timely access to quality health services, particularly for women of reproductive age, is essential to prevent new infections and advance toward the elimination of congenital Chagas disease in the Region of the Americas,” he added.

What Is Chagas Disease?

Chagas disease, also known as American trypanosomiasis, is a illness caused by the parasite Trypanosoma cruzi, and is primarily transmitted by triatomine insect vectors.

It gets spread through

  • oral transmission,
  • blood transfusion,
  • mother-to-child.
  • through transplants of some organs (such as heart or kidney)
  • through laboratory accidents.
While largely asymptomatic in its early stages, it can lead to severe cardiac and digestive complications years or even decades later.

If left untreated, one third of infected people—including women and the children they carry—will develop life-altering heart, digestive, and even neurological conditions, and may even become fatal.

Once endemic to 21 countries in Latin America, the disease has now spread globally due to migration. It is now a global health concern with cases found in 44 countries including the US, Canada, Europe, Australia, and Japan.

World Chagas Disease Day 2026: Theme

World Chagas Disease Day was celebrated for the first time in 2020.

The theme this year is “Women at the heart of care, protecting the next generation” and underscores the key role women play in family and community caregiving, as well as their greater interaction with health services, particularly during pregnancy.

Chagas Disease: Role Of Women

According to the World Health Organization (WHO), about 2 million women aged 15-44 years are living with Trypanosoma cruzi infection worldwide.

Congenital transmission or mother-to-child transmission remains a major challenge, occurring in about 3–5 percent of pregnancies. However, it also provides a key opportunity for effective intervention.

The transmission cycle of the disease can be effectively broken by

  • Treating infected girls and women before pregnancy
  • Strengthening screening in maternal and child health services
  • Eaccess to diagnosis and treatment.
  • Newborn screening can help diagnose and treat, with a cure rate exceeding 90 percent.
  • Increase awareness at community and family levels.
  • Avoid foodborne transmission
“The role of women in the fight against Chagas must not and should not translate into an additional burden or exclusive responsibility for them,” said organizations from the Secretariat of the Global Chagas Coalition.

“On the contrary, it represents a strategic opportunity to strengthen more equitable, accessible, and responsive health systems that recognize and respect women’s needs.”

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BBC Host Naga Munchetty Opens Up About Suffering From ‘Evil Twin Sister Of Endometriosis’

Updated Apr 14, 2026 | 01:00 AM IST

SummaryAdenomyosis is an extremely painful condition that affects the womb and causes the uterus to enlarge. Although it affects an estimated one in 10 women, it remains undiagnosed in most women.
BBC Host Naga Munchetty Opens Up About Suffering From ‘Evil Twin Sister Of Endometriosis’

Credit: Naga Munchett/ Instagram

The BBC Breakfast host Naga Munchetty has opened up about her experience of suffering from a painful womb condition, known as the "evil twin sister of endometriosis".

The 51-year-old Naga Munchetty explained her condition as adenomyosis, which can cause extreme pain at any time. Munchetty added that she has faced the condition even while presenting her show, The Independent reported.

Naga Munchetty said that adenomyosis has caused her severe pain since she was in her teens, and she has “become conditioned to accept” it.

“If you’re curled up on the floor screaming, sweating, flooding, passing out, vomiting, that is debilitating. But you end up normalizing that pain.”

What Is Adenomyosis

Adenomyosis is an extremely painful condition, which affects the womb and causes the uterus to enlarge. Although it affects an estimated one in 10 women, it remains undiagnosed in most women.

It is a lesser-known but significantly debilitating gynecological disorder that is commonly mistaken for endometriosis.

Adenomyosis leads to debilitating symptoms such as

  • intense pain
  • heavy menstrual bleeding,
  • cramps,
  • abdominal bloating
  • fertility issues.

Differences Between Endometriosis And Adenomyosis

Adenomyosis occurs when endometrial cells—typically restricted to the lining of the uterus—break through the myometrium, the muscular wall of the uterus.

Endometriosis, on the other hand, happens when tissue similar to the lining of the uterus grows outside the uterus. These tissues commonly develop on the ovaries, fallopian tubes, or the pelvic lining.

In contrast, adenomyosis is inside the uterus but produces serious complications. These out-of-place endometrial cells continue to act as they would in a regular menstrual cycle, becoming thick and shedding, which leads to internal bleeding, inflammation, and intense pain.

Adenomyosis: The Condition Without Treatment

Despite going to the doctors several times, Naga Munchetty was not diagnosed until recently, as she was led to believe the pain she was experiencing was “normal”.

No absolute cure for adenomyosis exists except for a hysterectomy, which involves the removal of the uterus. Nevertheless, several treatment options can alleviate symptoms and enhance quality of life. These include:

1. Pain Relief

Ibuprofen and naproxen, over-the-counter pain medications, are usually prescribed to relieve menstrual cramps and pain.

2. Hormonal treatment such as

  • Birth control pills
  • Hormonal IUD (Intrauterine Device)
  • Progesterone therapy
3. Lupron Injections (GnRH Agonists)

GnRH agonists, such as Lupron, induce temporary menopause by suppressing estrogen production, thereby reducing adenomyosis symptoms. However, these injections can cause severe side effects, including mood swings, hot flashes, and bone density loss, making them unsuitable for long-term use.

4. Surgical Intervention

  • Endometrial Ablation: This involves the removal of the uterine lining to manage heavy bleeding, but it is not a permanent solution and is not suitable for women who want to become pregnant.
  • Uterine Artery Embolization (UAE): A non-surgical procedure that cuts off the blood supply to the affected areas, reducing the size of the adenomyotic tissue.
  • Hysterectomy: The only permanent solution for adenomyosis, a hysterectomy is usually considered as a last option for women who have finished their childbearing years.

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