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.

Every year on March 20, World Oral Health Day is observed to raise awareness about the importance of caring for your mouth at every stage of life. This means starting from birth through later years. However, a visit to dentist is usually the last thing anyone plans when they think of a doctor's visit. Dental visits happen only when extraction or something bigger is involved. More often than not people ignore a follow up or a regular dental checkup to maintain oral health. Why so?

In a previous interview with Health and Me Lt Gen Dr Vimal Arora, the Chief Clinical officer at Clove Dental, who has 40 years of experience as a dentist and also served in the Indian Army explained how oral health is not just about a pretty smile. He explained that many do not plan a regular visit to a dentist because the problems that pertains to oral health do not seem "life threatening".

Read: Exclusive: Astronaut Rakesh Sharma Had To Get His Wisdom Tooth Extracted Before His Trip To Space

However, Dr Arora told Health and Me that oral health can in fact be the first way to know if anyone is prone to a chronic disease.

Early Signs Of Disease Your Mouth Can Reveal

“There is now scientific evidence, published in top medical journals, that shows how oral infections can significantly worsen pre-existing systemic diseases,” says Dr. Arora. This isn’t just a theory — it’s a medically established fact.

Take diabetes, for instance. People with gum infections often find it harder to control their blood sugar levels. “If you're suffering from diabetes and you have a gum infection, your diabetes will not be well controlled. In fact, it may worsen,” he adds. The same applies to heart diseases. Oral infections can increase inflammation in the body, potentially triggering or worsening cardiovascular problems.

This is concerning especially for those people who may already be managing conditions like hypertensions, arthritis, or respiratory illness. Poor oral health can actually sabotage their efforts to stay stable.

“Your tongue is a true mirror of your oral and general health,” says Dr. Arora. The correlation therefore goes beyond just gums and teeth. Dentists are trained to detect early signs of systemic disorders simply by examining the tongue's color, coating and texture.

A pale tongue might indicate iron deficiency, while a coated tongue could be a sign of digestive issues or a viral illness. “Sometimes, we ask patients if they've had their blood work done, based purely on what we see on their tongue,” he adds. In some cases, dentists can even detect undiagnosed diabetes or early signs of nutritional deficiencies.

What Mother's Oral Health Can Predict About Their Babies

Dr. Arora also highlights the overlooked risks that pregnant women face when they neglect their dental hygiene. “If you are pregnant and suffer from periodontitis or even gingivitis — essentially poor gum health — you are at risk of having a preterm or low-birth-weight baby,” he says.

This isn’t just theory; it’s a well-documented risk in obstetric dentistry. Pregnant women are encouraged to get dental check-ups not just for themselves, but for the health of their unborn child.

Despite these evidences, oral health remains one of the most neglected aspects of personal healthcare. Dr. Arora believes this is partly due to a lack of awareness and the perception that dental problems are not "serious enough."

“People often wait until they’re in pain before they see a dentist, but by then, the damage might already be affecting other parts of the body,” he says. Preventive check-ups, regular cleaning, and treating gum infections early on can go a long way in improving not just oral health, but overall wellness.

Most people reach for sunscreen when heading to the beach or stepping out for a long day in the sun. But skincare experts say sun protection should not be limited to vacations or outdoor activities. Sunscreen is meant to be part of a daily skincare routine.

This often raises a common question. If you are staying indoors all day, do you still need sunscreen?

Dermatologists say the answer depends on your surroundings and daily habits.

Sunlight can still reach you indoors

Many people assume that staying inside completely protects their skin from sunlight. But this is not always true.

Dr Khushboo Jha, MBBS, MD, Chief Dermatologist Consultant at Metro Hospital and Founder of One Skin Clinic, explains that sunlight entering through windows can still affect the skin.

“While standard window glass blocks most UVB rays, which cause sunburn, UVA rays can still pass through. These rays penetrate deeper into the skin and are linked to long term concerns such as premature aging, uneven pigmentation and loss of skin elasticity,” she says.

These UVA rays are often overlooked because they do not cause immediate redness or burning like UVB rays. However, over time they can lead to visible signs of skin aging and pigmentation.

When sunscreen indoors becomes important

Dermatologists say sunscreen indoors is particularly useful for people who spend long hours near windows or in well lit spaces.

Dr Jha notes that individuals who work near windows, sit in sunlit rooms or spend time driving during the day may still be exposed to sunlight. “Even short periods of daily exposure to sunlight over time can contribute to cumulative skin damage,” she explains.

In such situations, applying sunscreen in the morning can offer an added layer of protection. A broad spectrum sunscreen with at least SPF 30 is generally recommended.

This approach is especially relevant for people working in offices with large windows or those who frequently commute during daylight hours.

What if you are away from windows?

Experts also say sunscreen use indoors is not always equally necessary for everyone.

If you spend most of the day inside a room with minimal natural light and away from windows, your exposure to ultraviolet radiation becomes much lower.

Dr Jha says that in such cases the urgency of frequent sunscreen reapplication becomes less important. The risk of sun related skin damage is significantly reduced when there is little to no direct daylight entering the space.

This means sunscreen indoors should not be treated as a strict rule but rather as a flexible part of skincare based on lifestyle and environment.

What about blue light from screens?

Another topic that often comes up is blue light exposure from digital devices such as phones, laptops and tablets.

Some studies suggest that prolonged exposure to visible light may contribute to pigmentation, especially in individuals with deeper skin tones. However, dermatologists point out that the amount of blue light from electronic screens is much lower than what we receive from natural sunlight.

Dr Jha says the effect of digital screens on the skin is still being studied, but compared to sun exposure, the impact remains minimal.

A practical approach to daily skincare

Dermatologists suggest viewing sunscreen as a preventive skincare habit rather than a rigid rule.

Dr Jha recommends incorporating sunscreen into your morning routine, particularly if your day includes stepping outdoors or spending time in naturally lit environments.

In simple terms, if daylight reaches your workspace or you plan to go outside later in the day, applying sunscreen in the morning is a small step that can help protect your skin over time.

At the age of 28, Courtney Paton realized she could never have children. She was medically infertile. This was after years of repeated surgeries, a total of seven, for 'suspected' endometriosis, due to which Dr Simon Gordon, Melbourne-based gynecologist removed both her ovaries and eventually her uterus.

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Her story came to light through an investigation by the Australian Broadcasting Company or ABC's Four Corners, an investigation that looked at the treatment she received from Dr Gordon.

Courtney says she trusted the doctor completely. Now she says that trust has been shattered. “I feel completely betrayed by not only Simon Gordon, but by Epworth, by the healthcare system,” she told the program.

A Wrong Diagnosis That Led to Repeated Surgeries

Courtney first had laparoscopic surgery in 2018 with another surgeon, which confirmed she had endometriosis. The condition affects about one in seven Australian women and can cause severe pelvic pain and fertility problems.

Still struggling with pain, she began seeing Gordon in 2019 when she was 21.

Over the next several years she underwent seven surgeries with him. Gordon told her the procedures were necessary to treat severe endometriosis. Courtney and her family paid more than 32,000 Australian dollars for these surgeries alone.

But when investigators asked her to obtain her pathology reports, the results told a very different story. The tissue tests from most of her surgeries showed no evidence of endometriosis.

Despite this, operation reports written by Gordon continued to describe findings consistent with the disease.

Read: A Woman Lost Her Ovary To Endometriosis Surgery After Receiving An Ultimatum From Gynecologist

Removal of Both Ovaries

In 2021 Gordon removed one of Courtney’s ovaries, saying it was stuck to the pelvic wall. Later he removed the second ovary as well.

Independent specialists who reviewed the pathology for the investigation said the ovary appeared normal and there was no clear justification for removing it. One expert described the treatment as “unbelievable” after reviewing the medical records.

Medical guidelines generally advise caution when removing ovaries from young women who may want children in the future.

Read: This Is Endometriosis, A Short Film On Debilitating Health Condition Wins BAFTA Award 2026, Know More

A Hysterectomy At 25

Despite losing both ovaries, Courtney continued to experience pelvic pain. Gordon later advised that she should undergo a hysterectomy.

Concerned, she sought a second opinion from another gynecologist who said the procedure was unnecessary and suggested non surgical treatments.

But after years of pain and repeated surgeries, Courtney says she felt desperate for relief and trusted the doctor who had treated her for so long. Her uterus was removed in 2023 when she was just 25.

Again, pathology results found no evidence of endometriosis.

Investigation and Legal Action

Courtney is now pursuing legal action through a medical negligence claim. The case has also drawn attention from regulators, with investigations underway into Gordon’s conduct.

Australia’s federal health minister Mark Butler described the allegations as “physically sickening”.

For Courtney, the emotional impact remains overwhelming.

“No woman should ever have to endure what I’ve endured,” she said. “I’ve had the opportunity to have a family taken away from me.”