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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It can feel overwhelming to understand the wide range of conditions neurologists deal with. Their work spans cerebrovascular problems such as stroke and carotid artery disease, seizure disorders, and progressive illnesses like Alzheimer’s disease and frontotemporal dementia. They also treat headaches and facial pain, movement disorders including Parkinson’s, muscle conditions, sleep disorders such as narcolepsy, and many other issues.
“If there’s a nerve somewhere, a neurologist could get involved,” explains Dr. Andrew Dorsch, division chief for general neurology at Rush University System for Health and a specialist in neurologic rehabilitation. “Nerves run through the entire body. That means there are countless ways the nervous system can be affected, and figuring out the cause often requires real detective work.” He notes that many people dismiss neurological symptoms for years, blaming them on ageing or assuming they will pass. That delay can be costly.
Neurological symptoms are warning signs that something may be affecting the brain, spinal cord, or nerves. They can look very different from person to person. Some experience headaches, changes in vision, speech, or hearing, or sensations like numbness and tingling.
Others notice tremors, weakness, poor balance, or trouble coordinating movements. Cognitive changes such as memory lapses, confusion, seizures, sleep problems, and intense pain can also fall under this category. These symptoms happen when nerve signals are disrupted, interfering with sensation, movement, thinking, and even consciousness, according to the Cleveland Clinic.
According to TIME, four neurologists shared the symptoms that should never be brushed aside, along with what they could mean.
Double vision affecting one eye is a symptom many people underestimate. It can stem from a range of serious conditions, including multiple sclerosis, stroke, aneurysm, myasthenia gravis, brain tumours, or infections of the brain, says Dr. Luis Cruz-Saavedra, a neurologist at Memorial Hermann Health System.
So when does it require action? “Right away,” he says. “Sudden double vision is a reason to go straight to the emergency room.” Doctors will assess vital signs, look for signs of stroke, examine the eyes and nervous system, and may recommend imaging tests such as a CT scan or brain MRI.
Have you noticed one leg dragging when you walk, or found yourself limping without a clear reason? Maybe holding a cup or writing with your usual hand has become difficult. If so, it is time to see a doctor.
“I’m always struck by how many people downplay weakness on one side of the body,” Cruz-Saavedra says, noting this is far from a good thing. “Patients often come in months after it starts. Many assume it’s a pinched nerve, but it could signal a stroke, a brain tumour, multiple sclerosis, or inflammation in the brain.” During evaluation, neurologists assess muscle strength, reflexes, coordination, and walking patterns to narrow down the cause.
Some neurological conditions cause brief moments where a person seems to switch off, then quickly returns to normal without remembering what happened. These episodes are often linked to temporal lobe seizures, which affect brain areas involved in memory and emotional processing, Cruz-Saavedra explains.
Stroke remains one of the leading causes of death in the United States, yet many people fail to recognize its signs and delay seeking help. “I hear stories all the time where someone has stroke symptoms and decides to lie down and wait it out,” says Dr. Enrique Leira, director of the division of cerebrovascular diseases at the University of Iowa.
Stroke symptoms usually come on suddenly and involve a loss of function. Speech changes are a common example. A person may slur words, speak unusually slowly, struggle to find the right words, or have trouble understanding others. In such cases, immediate medical attention is essential, Leira stresses.
Headaches can be tricky for neurologists because there are so many possible causes, many of them harmless. Still, certain types raise red flags. A headache that is extremely intense and appears out of nowhere, rather than building gradually, deserves attention. If it strikes during physical exertion, that concern increases.
“If it’s severe, sudden, and linked to effort, it needs to be checked right away,” Leira says, as it could point to something serious like a stroke.
When patients report numbness, it most often affects their fingers or toes. “That usually means the nerves aren’t sending signals back to the brain properly,” Dorsch explains. “The nerve may be temporarily stunned, or in some cases, permanently damaged.” This differs from tingling, which tends to suggest irritation rather than loss of signal.
The first step is a thorough evaluation to identify which nerves are involved and why. Diabetes is a common cause, but not the only one. Genetic disorders or immune conditions that attack nerves can also be responsible, Dorsch says.
Almost everyone experiences déjà vu now and then. But frequent episodes are a different matter. “If it’s happening regularly, it’s worth getting evaluated,” Dorsch advises. Repeated déjà vu can be an early sign of temporal lobe seizures. He recalls treating a patient who experienced these episodes weekly or every few weeks, far more often than is typical.
With age, stiffness and slower movement are common. Still, certain difficulties stand out. If standing up from a chair becomes a recurring struggle, a medical check-up is important.
“It could be joint-related, but we also need to rule out problems with the muscles, nerves, or spinal cord,” Dorsch says. Conditions such as Parkinson’s disease or amyotrophic lateral sclerosis (ALS) may be involved. “That’s not something I’d want anyone in my family to ignore.”
Neurologists watch closely for changes in how someone speaks. One example is hypophonic speech, where the voice becomes unusually soft or breathy, which can be a sign of Parkinson’s disease, says Dr. Alexandru Olaru, a neurologist at University of Maryland St. Joseph Medical Center. Slurred speech, on the other hand, may point to a stroke.
Another concerning sign is wet dysarthria, when speech sounds gurgly, often due to saliva or mucus pooling at the back of the throat. “Muscle loss in that area makes it harder to manage saliva,” Olaru explains. Common causes include Parkinson’s disease, ALS, and multiple sclerosis.
Occasional muscle twitching is normal. It can happen anywhere in the body and may even be visible under the skin as small ripples. “You can sometimes feel it if you place your hand over the muscle,” Olaru says. Persistent or widespread twitching, however, may warrant further evaluation.
Sudden shifts in behaviour or personality can signal neurological disease. Conditions such as autoimmune encephalitis, frontotemporal dementia, or other cognitive disorders may present this way. One frequent example is new-onset paranoia. A person might believe they are being targeted, betrayed, or plotted against, even when there is no logical basis, Cruz-Saavedra says.
Neurologists also take note when a typically reserved person becomes unusually talkative or disinhibited. “Some people may develop hypersexual behaviour or make inappropriate remarks,” he adds. Others may change in the opposite direction, becoming withdrawn and quiet. Dementia can also show up as new obsessive behaviours or hoarding, Cruz-Saavedra notes.
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Been wondering what are Ozempic burps and how the drug works inside your body?
In a podcast episode of The Diary Of A CEO, insulin resistance expert Dr Benjamin Bikman explains how the blockbuster GLP-1 drug can alter the digestion process in your body to reduce weight.
Dr Bikman, a Professor of Cell Biology and Physiology at Brigham Young University in Utah explained: "GLP-1 is primarily a satiety hormone. It'll tell the brain that we're done eating and it will slow down the intestines significantly."
Ozempic (semaglutide) is a prescription injectable GLP-1 medication primarily approved for adults with Type 2 diabetes to manage blood sugar levels. However, the drug has gained immense popularity among those trying to lose weight as it can reduce hunger and help people feel full for longer, which forces the body to burn fat deposits to stay functional.
Also Read: UK Toddler Dies Of Rare Kawasaki Disease: What You Need To Know
In clinical trials, people with obesity using semaglutide have shown to lose an average of about 15% of their body weight over 68 weeks. Most people begin to see noticeable results within 8 to 12 weeks of taking the drug.
The official price in India for a once-weekly Ozempic injection pen ranges from approximately ₹8,800 for the 0.25 mg dose to around ₹11,175 for the 1 mg dose per month. Insurance coverage is generally inconsistent for weight loss indications.
According to Dr Bikman, ingested food sits in the stomach and intestines for about six hours on average for digestion. However, when the body receives GLP-1 hormones from injections, the body will considerably slow down the digestion process and food can stay in the body for about 24 hours.
"If we injected ourselves with a GLP-1 drug, which puts an artificial amount of GLP-1 in our body, boom, we shoot it in. Then it would it slows down people's intestines so much that they'll have food sitting in there for 24 hours," he said during the episode.
Experts have previously noted that slowing down the digestion process on purpose using drugs is unhealthy and risky unless done under strict medical supervision to treat a specific condition (such as chronic diarrhea or dumping syndrome as it can lead to gastroparesis.
Gastroparesis is a condition that occurs when the stomach muscles become weak and slow, failing to move food into the small intestine which can reduce nutrient absorption in the body and severe constipation. It can also form a hard mass called a bezoar, which can cause blockages and may require surgery.
"So, one of the things people talk about is what's called Ozempic burps where they just have this kind of belching bubbling gas because the food is sitting in the stomach for way longer than it's supposed to.
"So, no surprise the people are less interested in food. GLP-1 tells the brain they don't need to eat as much and slows down the intestines," Dr Bikman noted.
READ MORE: Wegovy 7.2 mg: Higher-Dose Weight-Loss Jab Cleared For Launch In UK
Yes. A new BMJ study has found that people who stop using weight-loss medications can regain weight and return their original size within two years.
Researchers have found that those who lose weight using blockbuster GLP-1 drugs such as Ozempic could regain about 0.4kg every month after quitting these treatments. In contrast, those who lost weight through exercise, diet and other factors only gained 0.1kg.

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A two-year-old boy from Bristol, UK has died from a rare heart disease, known to mostly affect children with only flu-like symptoms, on January 8.
Hudson Martin had been diagnosed with Kawasaki disease when he was seven months old and was placed on lifelong medication including aspirin and blood thinners to reduce the risk of clots. Since then, he had been living a normal and happy life, according to father Damien Martin.
He told Bristol Live: "You’d never know anything was wrong from pictures or videos. He bounced off everything. He loved climbing, dancing, music, he was a proper daredevil."
But days before his third birthday, he suddenly collapsed while playing at home. Despite being given CPR by paramedics for an hour, his heart did not restart and he passed away.
“They did absolutely everything they could,” Damien said. "His heart just wouldn't come back."
Also known as mucocutaneous lymph node syndrome, Kawasaki disease causes inflammation in the walls of small to medium-sized blood vessels that carry blood throughout the body which can damage to the heart and blood vessels, mostly in children younger than five years old.
When this happens, the heart doesn't work as well to pump blood to the body and could burst (coronary artery dilation and aneurysms). It also causes swelling in the lymph nodes and mucous membranes inside the mouth, nose, eyes and throat.
It remains unknown what causes Kawasaki disease in children and if it affects adults. Diagnosis involves ruling out other diseases that cause the same symptoms which include:
Apart from a 102.2 degrees Fahrenheit (39 degrees Celsius) fever that can last for five days, children with Kawasaki may also experience some or all of the following symptoms:
While this non-contagious disease can be treated with a mixture of antibodies given through the veins (intravenous immunoglobulin) and aspirin, it remains uncurable. Doctors may also advice steroids if intravenous immunoglobulin is not effective.
After receiving treatment for Kawasaki disease, most children recover fully and long-term follow-up care remains unnecessary. However, children who have suffered through aneurysms or other complications related to the disease will need lifelong monitoring with a cardiologist.
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