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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Did you know that prostate cancer is now the fastest-growing cancer among Indian men and yet remains one of the least discussed? Taking that first step to get tested for prostate cancer is the hardest thing a man will probably have to do. It is a delicate matter, no doubt, but lack of awareness and the stigma attached to the disease are keeping more and more men in the dark and hesitant to discuss this openly.
Indian men need to be nudged into taking that crucial first step towards treatment and to a healthy life waiting to be lived, post-treatment. The best way to break the societal stigma is to know everything about the disease and to demystify it.
Don’t forget, when it comes to getting the right medical aid for the disease, the second leading cause of death globally according to the WHO accounting for 10 million deaths since 2020, timing is everything. Thanks to all the technological advances made in the field in India and globally, there is hope for men across the world because prostate cancer is curable, provided it is detected early.
So, here is everything you need to know about it:
The gland in the male reproductive system that makes seminal fluid is the prostate. This most common type of slow-growing cancer in men that sees the abnormal growth of cells in the gland, if detected early, is very much curable. Some early-stage symptoms of the disease are blood in the urine or semen, trouble urinating and erectile dysfunction and if you’re asking yourself, why you?
You could probably blame age, family history or lifestyle choices. While we cannot change the ‘why’, we can master the ‘how’ of finding the right treatment in time. Step 1: Rule out the possibility of cancer with a simple Prostate-Specific Antigen (PSA) blood test.
In the last 10 years, technology and innovation have revolutionized the diagnostics and treatments of the disease. Scientists from across the world are working around the clock, making marked improvements in treating prostate cancer.
From surgery, radiation and hormone therapy to advanced AI-powered analytics, services and products, science ensures that the news gets better each day. We have AI analyzing vast quantities of medical data to find hidden patterns, and personalized prognoses, ensuring healthcare professionals are making diagnoses faster, more accurate and risk-free.
Similarly, minimally invasive treatments like TULSA-PRO are offering the medical fraternity and patients new hope. This incision and radiation-free, robotically-assisted and MRI-guided solution is a customizable treatment for prostate cancer. TULSA-PRO (Transurethral Ultrasound Ablation) uses real-time MRI guidance and ultrasound energy to precisely target and ablate prostate tissue without the need for incisions or radiation.
Patients can return to normal life in just a few days with faster recovery time and fewer side effects. This cutting-edge procedure uses MRI-guided transurethral ultrasound ablation (TULSA-PRO) to precisely destroy only the diseased tissue, whether it’s a small tumor (focal therapy) or the entire gland while actively cooling the urethra and rectum to protect them. It’s a one-time, day care, go home the same day with minimal pain and rapid return to normal life — most men resume work and normal activities within days.
While the science fraternity continues their path-breaking work in the field, it is also the responsibility of male citizens to keep themselves abreast of the developments in the field, report symptoms to a doctor early on, particularly those with a family history of prostate cancer.
Regular checkups are essential but so is knowing the difference between a routine check-up and specific tests for prostate cancer.
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Former US Senator Ben Sasse is battling Stage 4 pancreatic cancer that has spread around his body. According to his doctors, he now has four types of cancer: lymphoma, vascular, lung cancer, liver cancer, and pancreatic cancer.
Speaking to The New York Times’s “Interesting Times” podcast, the Republican Senator from Nebraska reflected on his life and impending death.
Also Read: Encephalitis Alert In Rajasthan As Mystery Disease Claims 2 More Young Lives
Sasse was diagnosed with Stage 4 pancreatic cancer in December 2025, which remained in the shadows for a long time. Until late October, Sasse had no symptoms. But it started with a lot of back and abdominal pain. Initially, he thought it was due to “some ab muscles pulled from stupid forms of training”.
His doctors thought Sasse had some undiagnosed celiac disease or some dairy allergy. However, a full body scan in December revealed that Sasse’s “torso is chock-full of tumors.”
“In mid-December, I got a three- to four-month life expectancy,” he was quoted as saying.
“They told me over the course of the next couple of days that I already have five forms of cancer: lymphoma, vascular, lung cancer, bad liver cancer, and pancreatic, where it originated,” the former senator added. “So, it was pretty clear that we’re dealing with a short number of months left to live.”
Sasse represented Nebraska in the Senate for eight years before resigning to become the president of the University of Florida in July 2024.
During the interview, Sasse said his condition has improved since last December -- his pain is 80 percent reduced.
"I’m at Day 99 or something since then, and I’m doing a heck of a lot better than I was doing at Christmas," he said.
However, the former senator noted that he deals with nausea, as well as bleeding on his face due to intake of the investigational new drug daraxonrasib.
During the interview, the former lawmaker’s face was covered in dried blood.
Sasse, a father of three, said he felt a “heaviness” with respect to realizing he did not have much time left with his family.
“I didn’t like the idea of my 14-year-old son not having a dad around at 16,” he remarked. “I didn’t like the idea of my daughters, who are 22 and 24, not having their dad there to walk them down the aisle. I felt a real heaviness about that.”
However, the Nebraska Republican said he has “continued to feel peace about the fact that death is something that we should hate.”
“We should call it a wicked thief,” he continued. “And yet, it’s pretty good that you pass through the veil of tears one time and then there will be no more tears, there will be no more cancer.”
Pancreatic cancer has long been one of the toughest challenges in oncology. With a five-year survival rate hovering around 13 percent and recurrence rates approaching 80 percent after treatment, the odds have historically been stacked against patients.
The prevention and early detection remain vital.
Experts warn that pancreatic cancer often masquerades as common ailments, delaying diagnosis. Here are some early symptoms that should never be ignored:
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Three simple lifestyle changes, such as regular physical activity, cutting down sedentary time, and improving sleep duration, may significantly boost your brain's cognitive abilities and reduce the risk of dementia later in life, according to a new study.
Dementia is a neurodegenerative condition affecting an estimated 55 million people globally. It is characterized by a decline in memory, thinking, and social abilities.
Together, the three simple lifestyle changes cut down the risk of late-onset dementia by 25 percent.
Published in the open-access journal PLOS One, the systematic review and meta-analysis of over 69 prospective cohort studies involving millions of cognitively healthy adults aged 35 and above showed the potential benefits of lifestyle behaviors such as regular physical activity, cutting down sedentary time, and improving sleep duration.
According to the Alzheimer’s Association, a person’s overall risk for developing Alzheimer’s disease—the most common form of dementia—is about 11 percent. However, the study found that with the simple suggested lifestyle changes, the average person’s risk decreases to approximately 8 percent.
The study emphasized that people do not need elaborate and expensive longevity hacks to stay mentally sharp as they age.
The reduction is “fairly comparable to the effect sizes sometimes seen with medications for chronic diseases,” said Akinkunle Oye-Somefun, a researcher at York University in Toronto, who led the study, NBC News reported.
The findings showed that avoiding sitting for longer periods had the greatest effect and can have a long-term benefit for the brain.
Sitting for more than eight hours a day increased dementia risk by almost 30 percent, at the same time being regularly active, even just going for a walk every day, decreased dementia risk by an average of 25 percent.
Long sitting hours can also spike a person’s risk of other conditions such as cardiovascular disease, diabetes, and obesity, all of which in turn raise dementia risk.
Getting between seven and eight hours of sleep each night also had a greater benefit on the brain.
Also read: 'Game Of Thrones' Actor Michael Patrick Dies After Battle With Motor Neurone Disease
The risk of dementia increased by 18 percent among those who slept less than seven hours, while sleeping more than eight hours per night also raised the risk of the neurodegenerative disease by 28 percent.
Importantly, moderate physical activity “offsets dementia risks even when other risk factors are present,” said Oye-Somefun, NBC News reported.
However, “many people assume that being physically active cancels out the harm of sitting for long periods. It doesn’t,” Oye-Somefun said. “We shouldn’t do one of these things alone; we should do them all.”
Also read: Simple Brain Training Exercise Cuts Dementia Risk For 20 Years, Study Finds
Dementia is an umbrella term used to describe a significant decline in mental function that is serious enough to affect everyday life. It commonly impacts memory, thinking, and reasoning skills.
Dementia itself is not a single disease but a collection of symptoms caused by underlying conditions such as Alzheimer’s disease or vascular dementia.
Common signs include
These symptoms usually worsen over time and are not considered a normal part of ageing. Although there is no cure, treatment options can help manage symptoms, and early diagnosis plays an important role in care planning.
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