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.
Credits: Canva
Women are spending thousands of pounds to address an intimate and largely unexpected side effect linked to rapid weight loss caused by so-called “fat jabs.” As these injections grow quickly in popularity, doctors say sudden and significant weight loss is leading some women to notice changes in their labia or vulva.
This has resulted in a rise in private cosmetic procedures commonly referred to as “labia puffing.” For those unversed, the vulva refers to the external female genital area, which includes the labia. The labia are the folds of skin that surround the vaginal opening.
Originally developed to manage Type 2 diabetes, weight-loss injections have entered the mainstream at remarkable speed. As per Mirror, in the UK alone, about 2.5 million people are now using these drugs, according to figures reported by The Telegraph in October. That means roughly one in every 20 adults. Most users access the injections privately, as they are rarely available through the NHS. The report also noted that sales of medications such as Mounjaro and Wegovy reached 2.5 million in July, marking a sevenfold increase compared to the previous year.
While headlines have largely focused on visible changes such as slimmer bodies and faces, including among celebrities like Sharon Osbourne and Serena Williams, medical professionals say other, less discussed effects are starting to emerge.
Along with widely known side effects such as nausea, diarrhoea, constipation, abdominal pain, and vomiting, some women are now reporting noticeable changes in the appearance of their vulvas and labia.
Doctors explain that the issue is not weight loss itself, but the speed at which it happens. Rapid weight loss strips fat from many areas of the body, including the vulval region. For some women, this leads to a loss of volume in the labia, causing loose or sagging skin. This can result in irritation and discomfort during everyday activities such as sitting, cycling, or exercising.
Many women have taken to online forums to describe what they are experiencing. As per Mirror, one Reddit user shared, “She [the gynaecologist] told me my vulva is saggy and I will continue to experience pain when biking or sitting unless I have surgery or fillers.”
Doctors say these outcomes are not surprising. Dr Michael Tahery, writing on his women’s health website, explained that “the rapid weight loss that occurs throughout the body may result in visible sagging of the labia or vagina because of overall fat and volume loss.”
He added that this sagging can be caused by loose labia, excess skin in the vaginal area, wrinkles, or a combination of these factors. “It’s also common for rapid weight loss to cause the labia to suddenly feel out of proportion compared to how it previously felt,” he noted.
For many women, the impact goes beyond appearance. The loss of natural cushioning can increase friction and sensitivity, turning once-comfortable activities into painful experiences. As a result, more women are seeking help from private clinics, where corrective procedures can cost around $2,000, or approximately £1,479. The treatment, often called labia puffing, focuses on restoring volume to the outer lips of the vulva.
Speaking to The Daily Star, Dr Shazia Malik, consultant gynaecologist at The Portland Hospital, explained how the procedure works. “Labia puffing uses dermal fillers, such as hyaluronic acid or fat, to restore volume to the labia majora, which are the outer lips of the vulva,” she said. “It is a minimally invasive procedure designed to improve appearance by increasing fullness, smoothness, and symmetry.”
Dr Malik also pointed out that the demand is not limited to women using weight-loss injections. “The procedure is most commonly sought by women who want to regain a more youthful, fuller appearance due to ageing, weight loss, or childbirth,” she explained.
The growing interest in these procedures highlights how dramatically weight-loss injections can change the body. Unlike gradual weight loss achieved through diet and exercise, the speed at which fat can disappear with these drugs means changes can occur in areas people do not expect. For some women, these sudden shifts are significant enough to push them toward cosmetic interventions to feel comfortable again.
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Alzheimer’s disease and other types of dementia affect memory, thinking ability, and day-to-day functioning. While certain risk factors such as age and genetics cannot be altered, others are within our control. One such factor is obstructive sleep apnea, a condition that is both common and treatable.
Obstructive sleep apnea, or OSA, occurs when breathing repeatedly stops and restarts during sleep. Growing evidence suggests that untreated sleep apnea may raise the risk of memory loss, cognitive decline, and dementia, including Alzheimer’s disease. The encouraging part is that timely treatment may help safeguard brain health.
During sleep, the muscles at the back of the throat naturally relax. In people with obstructive sleep apnea, these muscles relax excessively and block the airway. As a result, breathing pauses briefly until the brain signals the body to wake up just enough to resume breathing. Nebraska Medicine neurologist Dr Daniel Murman explains that this cycle can occur dozens or even hundreds of times each night. Although a person may spend six to eight hours in bed, the repeated interruptions mean the sleep remains shallow and unrefreshing.
Many people live with sleep apnea without realising it. According to the Cleveland Clinic, some common signs to watch for include:
In more serious cases, repeated breathing pauses can lower oxygen levels during sleep. Over time, this oxygen deprivation can damage several organs, including the brain.
Untreated sleep apnea can impact the brain in both immediate and long-term ways. “In the short term, disrupted sleep makes clear thinking more difficult,” says Dr Murman. “People may notice problems with attention, reaction time, multitasking, and memory. These issues can resemble early signs of dementia but may improve once sleep apnea is treated.”
Over longer periods, frequent drops in oxygen levels combined with poor sleep quality may lead to lasting brain changes. Research has consistently shown a strong association between untreated sleep apnea and an increased risk of:
Although studies are ongoing, scientists believe sleep apnea may harm the brain through multiple biological pathways.
A long-term ageing study published in JAMA Network Open also found that sleep apnoea is linked to a higher risk of mental health conditions over time. Researchers from the Ottawa Hospital Research Institute analysed data from more than 30,000 adults aged 45 to 85, who were followed for an average of three years. Around 7,500 participants had sleep apnoea.
“In this national Canadian cohort study of 30,097 individuals, those at high risk of obstructive sleep apnoea had about 40 per cent higher odds of mental health conditions at both the start of the study and follow-up,” the authors wrote. “Over time, a high risk of OSA remained linked to a 44 per cent increase in the likelihood of developing new mental health conditions.”
The researchers also noted that middle-aged and older adults at high risk of sleep apnoea consistently reported poorer mental health outcomes. Women, people with lower incomes, and those with poorer overall health and life satisfaction were more likely to develop new mental health concerns. The findings underline the need for routine mental health screening among older adults at risk of sleep apnoea.
Previous research has already connected sleep apnoea with a higher risk of cognitive impairment and dementia. The study’s authors emphasised that future research should explore whether combining screening and prevention strategies could improve both mental wellbeing and long-term brain health.
Credits: Canva
Winters can be especially demanding for many women going through menopause or perimenopause. As the colder months arrive, concerns like dry, irritated skin, unexpected hair fall, and increased joint pain become more common. This rise in symptoms is not caused by cold weather alone. It is largely driven by the way seasonal changes interact with the hormonal transitions of menopause. To understand this better, we spoke to Tamanna Singh, Co-founder of Menoveda and a Certified Menopause Coach, who explained why these changes happen.
Menopause is a natural biological phase when a woman’s menstrual cycles stop permanently, signalling the end of her reproductive years. It is officially diagnosed after 12 consecutive months without a period and usually occurs between the ages of 45 and 55, as the ovaries gradually reduce estrogen production.
The phase leading up to this, called perimenopause, involves fluctuating hormones that can trigger symptoms such as hot flashes, mood changes, and sleep disturbances. Postmenopause refers to the stage after menopause, according to the Mayo Clinic.
Menopause itself is a single milestone rather than a prolonged phase. Once a woman has gone a full year without a menstrual period, she is considered menopausal. After this point, she enters postmenopause, which continues for the rest of her life.
One of the key changes during menopause is the steady decline in estrogen levels. Estrogen supports skin moisture, collagen formation, healthy hair growth cycles, and joint lubrication. As this hormone decreases, the body becomes more reactive to environmental factors, with winter dryness having a stronger impact.
Tamanna Singh explains, “Cold air contains less moisture, and indoor heating further removes the skin’s natural oils. Lower estrogen levels weaken the skin’s protective barrier, increasing water loss. This leads to dryness, flaking, itching, and in some cases, eczema-like conditions. The skin also takes longer to repair itself, which makes winter-related irritation more difficult to manage.”
Hair follicles respond closely to hormonal changes. Tamanna notes, “During menopause, shifting estrogen levels and increased androgen activity shorten the hair’s growth phase, leading to more shedding. Winter adds further stress through reduced blood flow to the scalp, dietary imbalances after festive eating, and low Vitamin D levels due to limited sunlight. Combined, these factors make January a common time for noticeable hair thinning and hair fall.”
Estrogen also plays a role in reducing inflammation and keeping joints well-lubricated. As estrogen levels fall, women may experience stiffness, swelling, and discomfort, which tend to worsen in cold weather. Lower temperatures cause muscles and connective tissues to tighten, reducing flexibility. Staying less active during winter months further adds to joint stiffness and pain.
Managing these concerns calls for a well-rounded approach. Tamanna recommends:
Winter does not create menopausal symptoms. It simply intensifies what the body is already dealing with. With the right awareness, consistent care, and small seasonal adjustments, women can navigate the colder months with more ease and confidence.
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