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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Tingling Or Numbness In The Hands And Feet: Understanding The Role Of Vitamin B In Nerve Health

Updated May 12, 2026 | 02:00 PM IST

SummaryThese types of persistent or recurrent symptoms, however, could be a signal of a nerve health issue such as peripheral neuropathy. Vitamin B12 is crucial for the nervous system, and its deficiency could be one of the potential causes.
Tingling Or Numbness In The Hands And Feet: Understanding The Role Of Vitamin B In Nerve Health

Credit: AI generated image

Individuals who experience tingling, numbness, and burning sensations in their hands and feet often disregard these early symptoms, especially after a long drive, extended standing, or sleeping. Many frequently take painkillers to ease their discomfort in the hope that their pain and other symptoms will quickly go away.

These types of persistent or recurrent symptoms, however, could be a signal of a nerve health issue such as peripheral neuropathy. Vitamin B12 is crucial for the nervous system, and its deficiency could be one of the potential causes.

Early detection of these symptoms and appropriate, timely medical advice can help facilitate immediate intervention. Addressing nutritional gaps under medical guidance may help support overall nerve health and reduce the risk of progression.

Recognizing Vitamin B Deficiency Symptoms

Neurotropic B-vitamins are essential for preserving the structure and function of nerves. A lack of these vitamins may present as:

  • Tingling or “pins and needles” in the hands and feet
  • Numbness or reduced sensation
  • Body weakness and muscle fatigue
Patients may often probe, "What measures can I take for body weakness?" Although a thorough evaluation is necessary, nutritional deficiencies, particularly a lack of Vitamin B12, are significant and potentially reversible factors.

Common Vitamin B12 deficiency signs include persistent fatigue, sensory disturbances, imbalance and neuropathic discomfort. Early detection supports timely intervention and may help prevent further nerve damage.

The Role of Vitamin B In Supporting Nerve Health

The right nutritional support plays a key role in preserving nerve function:

  • Methylcobalamin, an active form of Vitamin B12, is considered to be one of the most important B-vitamins for nerve protection and repair. It plays a key role in maintaining the protective covering around nerves, which allows them to function properly.
  • Vitamin B1 supports nerve signal transmission and energy metabolism within nerve cells.
  • Vitamin B6 supports the production of important brain chemicals and helps maintain efficient nerve communication.

A Structured, Preventive Approach

An appropriate and active approach to nerve care includes nutritional adjustments, metabolic regulation, and the right assistance to support symptoms.

Dietary Optimization: Encourage intake of foods rich in B-vitamins such as whole grains, dairy, eggs, legumes, and leafy vegetables. However, for those with restrictions, the diet alone might not be enough, especially in cases of established deficiency, malabsorption, or restricted diets.

Targeted Treatment: When guided by a healthcare professional, oral supplementation can be considered as part of a comprehensive plan.

  • The well-recognized B complex tablets support nerve integrity and functional recovery in deficiency-related cases over time.
  • A combination of Vitamin B12 with B6, B3, B1, and B5 helps alleviate symptoms like tingling, numbness, and overall weakness.
  • For symptomatic relief from nerve pain, tingling, and burning sensations in hands and feet, topical formulations having 0.075% Capsaicin, Menthol, Eucalyptus, and Camphor may provide instant relief after a long commute or extended standing.
Often, patients search or ask about “Vitamin B tablets for diabetics” or “Vitamin B tablets for vegetarians”. For patients living with diabetes, high blood sugar can damage the nerves, making nutritional supplementation a useful balance to overall metabolic control. While for vegetarians, limited natural dietary sources of vitamin B12 increase the risk of deficiency, guided supplementation is essential.

  • Lifestyle management: Managing blood sugar levels, staying physically active, and avoiding prolonged periods of inactivity are all crucial for nerve health. Regular movement, stretching, and adequate sleep further support nerve resilience and recovery.
Recognizing Vitamin B deficiency symptoms enables early intervention. Addressing nutritional gaps alongside metabolic and lifestyle management can help support nerve health and improve quality of life in patients experiencing peripheral neuropathy symptoms. Symptoms lasting beyond a few weeks should not be ignored, and it is advisable to consult a neurologist.

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Chocolates, Snack Mixes Recalled In US Over Risk Of Salmonella Contamination

Updated May 12, 2026 | 10:10 AM IST

SummaryThe recall is due to a specific ingredient — milk powder supplied by California Dairies — used in several products and snacks, particularly in seasonings.According to the Food and Drug Administration (FDA), the potentially tainted powdered milk and buttermilk were voluntarily recalled on April 20.
Chocolates, Snack Mixes Recalled In US Over Risk Of Salmonella Contamination

Credit: AI generated image

Dozens of food products, including chocolates, snack mixes, popcorn, chips, and nuts, have been recalled in the US over the risk of salmonella contamination.

The recall is due to a specific ingredient — milk powder supplied by California Dairies — used in several products and snacks, particularly in seasonings.

According to the Food and Drug Administration (FDA), the potentially tainted powdered milk and buttermilk were voluntarily recalled on April 20.

Which Products Have Been Recalled?

Ghirardelli Chocolate Powders:

  • Chocolate Flavored Frappe
  • Classic White Frappe
  • Premium Hot Cocoa Pouch Bulk
  • Chocolate & Cocoa Sweet Ground Powder
  • White Chocolate Flavored Sweet Ground Powder
  • Vanilla Frappe Mix
  • Chocolate Flavored Frappe Mix
  • Classic White Frappe Mix
  • Chocolate Flavored Frappe Mix
  • Classic White Frappe Mix
  • White Mocha Frappe Mix
  • Mocha Frappe Mix
  • Frozen Hot Cocoa Frappe Mix
Utz Chips

  • Zapp's Brand Bayou Blackened Ranch Potato Chips
  • Zapp's Brand Bayou Blackened Ranch Potato Chips
  • Zapp's Brand Bayou Blackened Ranch Potato Chips
  • Zapp's Brand Big Cheezy Potato Chip
  • Zapp's Brand Big Cheezy Potato Chip
  • Zapp's Brand Salt and Vinegar Potato Chips (60ct)
  • Dirty Brand Salt and Vinegar Potato Chips
  • Dirty Brand Maui Onion Potato Chip
  • Dirty Brand Sour Cream and Onion Potato Chips
Pork Rinds and Seasonings

  • Bottles of Pork King Good Sour Cream & Onion Seasoning
  • Bags of Pork King Good Sour Cream & Onion Pork Rinds
  • Bags of Pork King Party Size Sour Cream & Onion Pork Rinds
Nuts and Trail Mix

  • Fisher Tex Mex Trail Mix
  • Southern Style Nuts Gourmet Hunter Mix
  • Southern Style Nuts Gourmet Hunter Mix
  • Southern Style Nuts Hunter Mix
  • Squirrel Brand Travelers Mix
  • Squirrel Brand Town & Country Mix
  • Squirrel Brand Town & Country Mix
  • Good & Gather Mexican Street, Corn Trail Mix
  • Giant Eagle Pita Chips:
  • Baked Pita Chips with Parmesan, Garlic & Herb
Popcorn and Popcorn Seasonings

  • Wildlife Seasoning Sour Cream & Onion Popcorn Topping
  • Williams Sonoma-branded Popcorn Sampler Gift Box with White Cheddar Seasoning
  • Fireworks Popcorn Poppings & Toppings gift set containing White Cheddar Seasoning
Cheese Curds

  • Stoltzfus Family Dairy Sour Cream
  • Onion Cheese Curds
Frozen Pizzas

  • Culinary Circle Ultra Thin Crust Chicken Bacon Ranch Frozen Pizza
  • Great Value Thin Crust Chicken Bacon Ranch Frozen Pizza
  • Great Value Stuffed Chicken Bacon Ranch Frozen Pizza
  • Mama Cozzi's Biscuit Crust Sausage & Cheese Frozen Breakfast Pizza
  • Mama Cozzi's Biscuit Crust Cooked Pork Belly Crumbles, Cooked Bacon Topping, Pepper & Onion Frozen Breakfast Pizza
Although there are no reports of injuries or adverse health effects, officials are concerned the products could be in consumers' or grocery stores' freezers, refrigerators, or pantries.

Also read:India Launches SEHAT Mission To Connect Farming With Nutrition And Health

The FDA urges people who purchased the products to throw them away or return them for a refund.

A separate Salmonella recall impacting 12 flavors of the popular chocolate brand Spring & Mulberry was also recently announced by the FDA, but appeared to be linked to a date supplier. It wasn't immediately clear if there was any connection to the California Dairies recall.

Another is a public health alert issued by the US Department of Agriculture’s Food Safety and Inspection Service (FSIS) for headcheese over possible contamination with Listeria monocytogenes (Lm).

What Is Salmonella?

Read More: Why The Norovirus Outbreak On A Caribbean Cruise Ship Is Not A Cause for Panic

As per the US Food and Drug Administration (FDA), Salmonella is a group of bacteria that can cause gastrointestinal illness and fever called salmonellosis. It can be spread by food handlers who do not wash their hands and/or the surfaces and tools they use between food preparation steps. It can also happen when people consume uncooked and raw food. Salmonella can also spread from animals to people.

The FDA notes that people who have direct contact with certain animals, including poultry and reptiles, can spread the bacteria from the animal to food if hand washing hygiene is not practiced.

Pets, too, could spread the bacteria within the home environment if they eat food contaminated with Salmonella.

Common symptoms of Salmonella include

  • diarrhea,
  • fever,
  • stomach cramps 6 hours to 6 days after being exposed to the bacteria.
The illness usually lasts 4 to 7 days, and most people recover without treatment, while in some, the illness may lead to hospitalization.

Children younger than 5, adults 65 and older, and people with weakened immune systems are more likely to have severe illness.

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Fact Check: Can Ivermectin Help Treat Hantavirus?

Updated May 12, 2026 | 10:13 AM IST

SummaryDoctors said that there is currently no strong scientific evidence or official guideline supporting ivermectin as a proven treatment for hantavirus in humans. They also advised people to avoid self-medication or depending on unverified online claims and to consult a doctor at the earliest if they experience any symptoms.
Fact Check: Can Ivermectin Help Treat Hantavirus?

Credit: AI generated image

Ivermectin, an antiparasitic medication, which gained widespread attention during the COVID-19 pandemic, is back in the spotlight again — this time in connection with the ongoing hantavirus outbreak linked to the MV Hondius.

According to the latest update from the World Health Organization (WHO), nine hantavirus cases have been confirmed so far, including three deaths.

Health authorities have also confirmed that the outbreak involves the Andes strain of hantavirus — the only known hantavirus strain capable of human-to-human transmission.

While global health agencies, including the WHO, Centers for Disease Control and Prevention (CDC), and the European Centre for Disease Prevention and Control (ECDC), continue to maintain that the overall public health risk remains low, memories of the COVID-19 pandemic and the disruption it caused remain fresh. As a result, fear, speculation, and misinformation are once again spreading rapidly online.

"Hantavirus is an RNA virus, and ivermectin should work against it," claims a May 6, 2026, post on X from Mary Talley Bowden, an ear, nose, and throat doctor suspended in 2021 by Houston Methodist Hospital for spreading Covid-19 misinformation.

"I actually texted her today and asked what we can treat hantavirus with. I'm so glad she posted it," former Texas representative Marjorie Taylor Greene wrote on X as she amplified Bowden's assertions about ivermectin.

HealthandMe spoke to experts to understand the truth behind these claims, and they dismissed the misinformation surrounding them stat.

Dr Jatin Ahuja, Consultant, Infectious Disease, Apollo Delhi, noted that, "there is currently no strong scientific evidence or official guideline supporting ivermectin as a proven treatment for hantavirus in humans".

He advised people to avoid self-medication or depending on unverified online claims and to consult a doctor at the earliest if they experience any symptoms.

Dr Rajiva Gupta, Senior Consultant, Internal Medicine, CK Birla Hospital, Gurugram, added that ivermectin is not approved for the treatment of hantavirus infection by major global regulatory and public health agencies, including the World Health Organization, Centers for Disease Control and Prevention, or the US Food and Drug Administration.

"Current claims linking ivermectin to hantavirus treatment appear largely unverified and are being circulated primarily through social media platforms," he told HealthandMe.

Also read: Why The Norovirus Outbreak On A Caribbean Cruise Ship Is Not A Cause for Panic

What Ivermectin Is Actually Approved For?

Ivermectin is a well-established medication that is highly effective against parasites. It was developed to treat topical parasitic infections and has been widely used for conditions like river blindness and scabies.

The drug's significance in treating these diseases was so profound that researchers who studied it won the Nobel Prize in 2015.

The US Food and Drug Administration (FDA) has approved ivermectin tablets for treating specific parasitic infections in humans. It is also available as a lotion to treat lice and as a cream for rosacea. Additionally, veterinarians also use it to prevent and treat parasitic diseases in animals.

Previously, ivermectin also gained popularity as a cancer cure, although there is no scientific evidence for it.

To understand the treatment for hantavirus, let us first look at how the rat-borne virus affects the body.

"Once hantavirus enters the body, it mainly affects the lungs and small blood vessels," Dr Jatin told HealthandMe.

In some patients, the infection can cause fluid build-up in the lungs, which may lead to breathing problems and low oxygen levels.

Further, the severity of symptoms also can vary from person to person and may depend on factors such as the amount of virus a person was exposed to, the body’s immune response, and how early treatment is started.

Like many viral infections, a higher viral load may sometimes be linked to more severe illness, although every patient can respond differently, the experts said.

Read More: High Blood Pressure? Daily Soy And Legume Intake May Help Lower The Risk: Study

Hantavirus: The Early Viral-like Symptoms

One challenge with hantavirus is that the early symptoms are quite non-specific and may resemble several common viral or respiratory infections.

Fever, body ache, fatigue, headache, nausea, and cough are commonly reported in the initial stage. In a few cases, symptoms may progress to breathing difficulty and lung-related complications, which require timely medical care.

So, How Can Hantavirus Be Treated?

Currently, treatments focus on medical care support and managing complications at the earliest stage possible.

"Patients may require oxygen support, hydration, monitoring, and intensive care depending on the severity of the illness. Early recognition and prompt medical attention remain important for better outcomes," Dr Jatin said.

Dr Rajiva noted that approved management for hantavirus infection remains primarily supportive, focused on respiratory and hemodynamic (circulatory) support. Among the therapies explored so far, ribavirin and monoclonal antibodies have shown some potential in experimental settings and animal models, but these are still under investigation and are not widely approved as standard treatment options.

How Can You Safeguard Against Hantavirus?

Also read: Hantavirus: Is Climate Change Behind The Outbreak?

Since there is no direct cure for hantavirus infection, prevention becomes extremely important. Key precautions include:

  • Avoid direct contact with rodents such as rats and mice
  • Maintain cleanliness in areas vulnerable to rodent infestation
  • Use gloves and masks while cleaning closed or dusty spaces
  • Avoid dry sweeping, as it can spread contaminated particles into the air
  • Keep food properly covered and dispose of waste carefully
  • Ventilate closed rooms or storage areas before cleaning them.

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