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.

Many women may come across the term "breast density" following a mammogram, but not all of them fully understand what it implies. The fact that someone has dense breasts does not mean that they have cancer or that they will definitely get it.

On the other hand, greater breast density can be linked to a higher risk of breast cancer and may also make it more difficult to detect certain cancers on a mammogram.

What Is Breast Density?

The breast density is the ratio of fibrous and glandular tissue to fatty tissue in the breast. Dense breast tissue is a normal variation and is especially frequent in younger women. It should be clear that women cannot tell themselves if their breast has dense tissue or not; it has to be assessed using breast imaging, typically a mammogram.

Breast density is usually divided into four types, going from almost all fatty tissue to very dense tissue, and women who have heterogeneously dense or extremely dense breasts are at a greater risk of developing breast cancer than women whose breasts are mainly fatty.

Also read: Alcohol-Linked Cancer Deaths Doubled In US: Colorectal Leads In Men, Breast Leads In Women

What Do Dense Breasts Indicate?

A major concern is that on a mammogram dense tissue appears white, just as many breast abnormalities—some of which are cancers—do too. This makes it harder for radiologists to spot certain abnormalities. Women need not be alarmed if their mammogram report states that their breasts are dense.

Breast density is just one of the factors to take into account when evaluating the risk of breast cancer; family history, age, past breast conditions, genetic mutations, hormonal factors, reproductive history, and lifestyle must also be considered.

It will depend on a woman's total risk level whether or not further screening is needed. Although mammography is still an important method of screening, in certain individual cases a doctor may suggest extra imaging, for example breast ultrasound or magnetic resonance imaging (MRI). Such tests are not required automatically for every woman who has dense breasts.

Also read: How Scientists Blocked Drug-Resistant Triple-Negative Breast Cancer With A Two-Step Drug Method

What Should Women Do?

Women should also know what is normal for their breasts. If a new lump is detected, there is a persistent change in the shape or size of the breast, the skin becomes dimpled, the nipple turns inwards, there is an unusual discharge from the nipple or there is ongoing discomfort, then it is advisable to have a healthcare professional look at it. Yet the majority of breast changes are not cancerous and symptoms by themselves are not enough to make a diagnosis.

Lifestyle plays a big role in maintaining breast health. One way of reducing the overall risk of breast cancer is to keep a healthy weight, remain physically active, limit alcohol intake, avoid tobacco, eat a well-balanced diet and stick to the recommended screening programmes.

Women must not regard breast density as a diagnosis. The main point is that women should not be afraid of dense breasts but should understand what this means for them. They must talk to their family doctor about their mammography report and their individual risk factors and then follow a screening programme suitable to their risk.

Breast density is therefore a valid reason for having a screening examination, not one for concern. By understanding breast density and talking to a breast specialist, women can make informed choices regarding screening and make sure that any potential abnormalities are assessed as early as possible.

By Dr. Meghal Sanghavi, Consultant Onco Surgeon, Wockhardt Hospital, Mumbai Central

Teachers are unarguably one of the most important influences during the early stages of a person's life. Along with learning and wisdom, teachers can also influence a child's or adolescent's mental health. Thus, they help shape students who are the future of any society or nation. This impactful profession and its contributions are celebrated worldwide, including in India.

The deteriorating mental health condition in students has escalated into a major global public health concern, heavily accelerated by academic pressure, systemic changes, and digital isolation. The World Health Organization (WHO), UNICEF, and Indian governmental bodies like NCERT have shared data that reveals a grim situation: there is a huge gap between the rising psychological distress among youth and the infrastructure available to support them.

The role of teachers in youth mental health is a topic that the study "A Shelter for the Heart: The Impact of Teacher Quality on Students' Mental Health" has thoroughly analyzed. The research, published in the journal Health Economics in 2026, was conducted in China and included 3,529 Grade 7 students, 86 classrooms, and 43 schools throughout the country. The study examines the impact of teacher quality, proxied by teacher experience, on student mental health.

How Do Teachers Protect Students' Mental Health?

According to the study, the role of the head teacher is particularly important to a student's mental well-being. While subject teachers are primarily responsible for learning, the study emphasizes that experienced teachers might do more than improve grades—they may also help protect students' mental health.

The study finds that the more experienced head teachers tended to build stronger teacher–student relationships, communicate more with parents, and create more supportive classroom environments. They were less likely to ignore or isolate struggling students and more likely to try to help them. All in all, the researchers concluded that school environments play an important role in determining adolescents’ mental health.

Mental Health On Location And Gender

The study “A study on mental health of students teacher in relation to their achievement in education psychology” by researchers at Tamil Nadu Teachers Education University, Chennai, found significant differences in mental health based on gender and location, with female and rural student-teachers reporting better mental health than their male and urban counterparts.

Teacher Distress Linked To Student Mental Health

A 2024 study published in BMC Psychology by researchers from McMaster University, the University of Sydney, the University of Johannesburg and the Hospital for Sick Children examined the relationship between teacher distress and student mental health. The researchers analysed data from 23,568 students and 1,478 teachers across 268 schools in Ontario, Canada. The researchers suggested that supporting teachers’ mental health and creating safer school environments could also benefit students’ well-being.

A 2019 study published in the Journal of Affective Disorders by researchers led by Stephen Harding also suggested that better teacher well-being was associated with better student well-being, highlighting the potential importance of supporting teachers’ mental health within schools.

Teachers Day 2026

Teachers’ Day 2026 in India is celebrated on September 5 to honour the contribution of teachers and educators. The day marks the birth anniversary of Dr. Sarvepalli Radhakrishnan, India’s first Vice President and second President, who was a distinguished philosopher, scholar and teacher. Since 1962, his birthday has been observed as Teachers’ Day in India. The occasion recognises teachers’ role in shaping students’ knowledge, character, confidence and well-being, while inspiring future generations to learn, grow and contribute to society.

Deceased organ donation covers our organ needs. In India, we are woefully short of organs such as kidneys and livers in cases of liver and kidney failure that need to be transplanted.

Deceased donation, as the name sounds, is a donation by people who are brain dead, whose family has now accepted and has willingly donated their organs for the benefit of the rest of the world.

Live donation, on the other hand, is a donation by living or emotionally related individuals who want to donate a kidney to a diseased patient. A live donation is usually transplanted immediately. It's done in the same centre, and both are done together, as the harvesting of the organ from the donor and transplantation are done simultaneously.

On the other hand, a deceased organ from a cadaveric donor may be harvested in a different geographical location and may be transported over time and over a lot of distance to another centre.

Deceased donation can be done for organs that cannot be transplanted by live donation, which are so consequential to a human body, such as the heart, lungs, and pancreas. They are very vital and cannot be transplanted from a live patient to another.

In a deceased organ donation, we can even donate tissues such as the cornea, skin, and blood vessels, which are required as a part of donation, as a part of other organ donation transplant programmes or, for example, in giving vision to people who have a white cornea or corneal opacity.

These are a few differences between live and deceased or cadaveric donation.

Dr. Vikram Shah Batra, Director - Urology, Kidney Transplant and Uro Oncology, Max Super Speciality Hospital, Dwarka