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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Every Two Minutes, One Woman Loses Her Life To Cervical Cancer: UN

Updated Jan 4, 2026 | 06:17 AM IST

SummaryThe UN says cervical cancer kills a woman every two minutes and remains the fourth most common cancer in women. Caused largely by HPV, it is preventable and curable through vaccination, screening and treatment. WHO says elimination is possible if vaccination, screening and care targets are met worldwide to save millions globally.
Every Two Minutes, One Woman Loses Her Life To Cervical Cancer: UN

Credits: Canva

"A woman dies from cervical cancer every two minutes," says the United Nations (UN). The UN notes that cervical cancer is the fourth most common cancer in women. Stating a case studies, UN noted that Jeanette, who was diagnosed with cervical cancer, died a year after she was diagnosed. Every January, during the Cancer Awareness Month, the UN and the World Health Organization (WHO) underscore that the illness is both preventable and curable. The WHO tweeted that cervical cancer would be the first cancer ever in the world to be eliminated, if 90% of girls are vaccinated, 70% of women are screened, and 90% of women with cervical cancer receive treatment.

What Is Cervical Cancer?

Cervical Cancer is a type of cancer that develops in layers of the cervix. It is caused by abnormal cell growth that can spread to another part of your body. There are two main types of cervical cancer. These are squamous cell carcinoma and adenocarcinoma.

Cervix is located in the pelvic cavity, about 3 to 6 inches inside the vaginal canal. It serves as the entrance to the uterus to the vagina. As per the World Health Organization (WHO), almost all cervical cancer are linked to human papillomaviruses (HPV) which are transmitted through sexual contact.

In 2022, around 660,000 women were diagnosed with cervical cancer globally and nearly 350,000 lost their lives to the disease, according to the World Health Organization. UNICEF warns that cervical cancer claims a woman’s life every two minutes.

Nearly all cases are linked to human papillomavirus, a very common sexually transmitted infection. While most people clear HPV naturally, persistent infection with high-risk strains can lead to cancer.

What Are The Symptoms Of Cervical Cancer?

Cervical cancer has no symptoms in the early days and therefore, is hard to detect until it has spread.

Early-Stage Cervical Cancer Symptoms

  • Vaginal bleeding after sex
  • Vaginal bleeding post-menopause
  • Vaginal bleeding between periods or unusually heavy/long periods
  • Watery vaginal discharge with a strong odor or containing blood
  • Pelvic pain or pain during intercourse
  • Advanced Cervical Cancer Symptoms (when cancer has spread beyond the cervix):

Persistent symptoms of early-stage cervical cancer

  • Painful or difficult bowel movements or rectal bleeding
  • Painful or difficult urination or blood in the urine
  • Persistent dull backache
  • Swelling of the legs
  • Pain in the pelvis or lower abdomen

How Can Cervical Cancer Be Prevented?

Cervical cancer is largely preventable and, when detected early, highly treatable. The World Health Organization recommends HPV vaccination for girls aged 9 to 14, before they become sexually active, along with regular cervical screening from age 30, or 25 for women living with HIV.

Despite this, unequal access to vaccination, screening and treatment continues to drive higher rates of illness and deaths in regions such as sub-Saharan Africa, Central America and Southeast Asia.

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Chickenpox Vaccines For Children On NHS Start Across UK, Here's What You Need To Know

Updated Jan 3, 2026 | 07:34 PM IST

SummaryThe NHS has introduced the MMRV vaccine, offering routine chickenpox protection to young children for the first time. Combined with the existing MMR jab at 12 and 18 months, it will reduce severe infections and hospitalizations. Catch-up doses are available, following evidence easing concerns about shingles risk in the UK nationwide.
Chickenpox Vaccines For Children On NHS Start Across UK, Here's What You Need To Know

Credits: iStock

Chickenpox vaccines in UK is now available for all young children on the NHS. This is the first time such protection against chickenpox has been offered. The vaccine will combine with the existing MMR jab, which is given at 12 and 18 month of age that is already known to protect against measles, mumps and rubella. Children up to the age of six can catch up on doses when invited.

What Is The New Chickenpox Vaccine?

The new vaccine is called the MMRV vaccine, where the V stands for varicella, this is another name for chickenpox. It is also expected to reduce the many thousands of families affected by the infection each year and prevent the most severe cases. As of now, parents would have to pay £200 to buy a vaccine privately to protect their children.

From January 1, the MMRV vaccine was introduced into the standard list of children's vaccinations in England, Wales and Northern Ireland, with Scotland announcing a rollout start date in early January.

How Common Is Chickenpox?

Chickenpox is very common among young children. Some of the common symptoms include itchiness, spotty rash which blisters then scabs over. Children could feel unwell for several days along with fever and muscle aches.

"For some babies, young children and even adults, chickenpox can be very serious, leading to hospital admission and tragically, while rare, it can be fatal," said Dr Gayatri Amirthalingam, deputy director of immunization at the UK Health Security Agency.

Chickenpox is caused by the varicella zoster virus, which is why the letter “V” has now been added to the standard MMR vaccine. The illness mainly affects children, but anyone can catch it at any age.

Also Read: NHS Rolls Out Chickenpox Vaccine For Kids— What Parents Should Know

During the pandemic, chickenpox cases fell sharply due to lockdowns and reduced social contact. As a result, experts believe natural immunity to the virus across the population remains lower than usual.

Although uncommon, complications can include serious bacterial infections such as group A streptococcus, brain swelling known as encephalitis, lung inflammation called pneumonitis, and even strokes. Very young babies under four weeks old face a higher risk of severe illness, as do adults who have never had chickenpox before.

Why Is The NHS Rolling It Out Now?

Until now, chickenpox vaccination was not routinely offered to all children because of long-standing concerns about shingles. Shingles is caused by the same virus, which can lie dormant in the nervous system for years before reactivating later in life, often when immunity weakens due to age, illness, or stress.

In 2009, the Joint Committee on Vaccination and Immunization decided against a nationwide rollout, fearing it could increase shingles cases among middle-aged adults. At the time, it was thought that natural exposure to chickenpox helped protect against shingles later on. More recent research from the United States, however, has challenged and largely dismissed that theory, paving the way for the NHS decision.

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What Are Micro-habits And How Can They Help You Live A Healthier Life

Updated Jan 3, 2026 | 03:10 PM IST

SummaryMicro-habits are small, sustainable changes that quietly improve health and longevity. Simple actions like daily movement, morning light exposure, timed coffee, mindful eating, consistent sleep, alcohol breaks, label reading, gut-friendly foods, listening to cravings, and routine health screenings can fit seamlessly into daily life, strengthening circadian rhythm, energy, mood, and wellbeing.
What Are Micro-habits And How Can They Help You Live A Healthier Life

Credits: iStock

Micro-habits. What are they? Many claim that these micro-habits can, in fact transform your life. Every new year, we come up with goals and ambitions, while some changes could be long lasting ones, some are small, almost like mundane habits. These habits are not much demanding, but they can fit into your lives seamlessly and change your life, for good.

They do not bring instant transformation, but could help you stay healthier and in fact, live longer.

Here are some micro-habits that you too can adopt.

Movement

Ensure that movement is non-negotiable in your plan. There have been many studies that say that you no longer need 10,000 steps to achieve your fitness goal. In fact, 4,000 steps per day could help you stay fitter. Your fitness journey could start by ensuing that you ensure your body is under movement, whether it is step count, light stretching between meeting and long hour at desk or ditching that escalator or elevator for stairs.

Light Is A Must

Make sure you give expose yourself to enough light. Natural light is important for your body's circadian rhythm. This also supports better sleep, better mood and sharper focus.

Coffee, But Timely

Your body has cortisol that is naturally released in the morning. This hormone helps you to wake up. However, drinking coffee too early could interfere this rhythm, and you may find yourself crashing later in the day. Make sure you drink water and keep yourself hydrated.

Mindful Eating

Ensure that whenever you are having a meal, you are eating without distraction. This also helps you regulate your appetite and you become more aware of your hunger as your body is better able to give the fullness cues.

A Set Bedtime

Try to ensure consistency of when you sleep. If you sleep at the same time each night, it can help you strengthen your circadian rhythm. This consistency will also affect your mood, concentration and energy. The best part, this will help you avoid the social jetlag.

Read: Not Boarded Any Flight And Still Monday Feels Like A Jetlag? You Are Not Alone

Breakaway From Alcohol

While there is no safe limit for alcohol consumption, if you are pressured about long-term leaving alcohol, try to give yourself a break. Try a 7-day no alcohol week, every now and then.

Listen To Your Cravings

If you are craving something salty, chances are your body lacks magnesium. There are many ways that craving tells you a lot about your body. Ensure that you run a full-body check to know what your body lacks. Fulfill these lacks with supplements, however, do make sure that these supplements are prescribed by your GP.

Read Labels

Mindful eating also comes when you start reading the labels of the food items you are buying. This way, you can know what you are putting in your gut system. Pay special attention for added sugars, processed food, and more.

Keep Your Gut-health Healthy

Go for pro-biotics, easy breakfasts like fermented rice, yogurt, khimchi and more. There are many studies that show the connection between gut health and rest of the body. If you keep your gut healthy, you will keep your body healthy too.

Timely Screening

A routine screening would help you stay one-step ahead of any disease. The key is that early diagnosis could cure the disease sooner without reducing the quality of life.

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