Blue light emitted by devices like smartphones, computers, and televisions is becoming a major factor disrupting our sleep cycles. Research reveals that a significant number of Americans use electronic devices close to bedtime, contributing to poor sleep quality. Reducing exposure to blue light, particularly in the evening, is a simple yet effective way to help your body prepare for restful sleep.

What Is Blue Light?

How Does Blue Light Impact Circadian Rhythms?

Circadian rhythms are 24-hour cycles that control essential bodily functions, including sleep. Light is the primary factor that aligns these rhythms with day and night. Historically, exposure to sunlight during the day helped set our body clocks, signaling when to be awake and when to sleep. However, the widespread use of artificial lighting and electronic devices has introduced more light exposure after dark, disrupting these natural cycles.

Blue light, in particular, has the strongest impact on circadian rhythms. During daylight hours, blue light helps us feel alert by stimulating the brain, raising body temperature, and increasing heart rate. But in the evening, exposure to blue light can confuse the body’s internal clock, suppressing melatonin—the hormone responsible for making us feel sleepy. As a result, our brains may remain in “daytime mode,” preventing us from winding down for the night.

Health Consequences Of Disrupted Sleep

Persistent disruption of circadian rhythms can lead to a range of health issues, including metabolic disorders, poor mental health, and increased risk for conditions like depression and anxiety. Furthermore, the inability to sleep well at night affects cognitive performance, mood, and overall well-being. Chronic exposure to blue light in the evening may significantly contribute to these negative health outcomes.

Devices That Emit Blue Light

Many common devices in our daily lives emit blue light, including:

- Smartphones and tablets

- Computer monitors and laptops

- Televisions and e-readers

- LED and fluorescent lighting

- Video game consoles

How To Minimize Blue Light Exposure

To reduce the effects of blue light on your sleep, here are some practical strategies:

1. Turn off screens before bed: Try to avoid using electronic devices at least two to three hours before bedtime. Reducing screen time helps prevent blue light from interfering with melatonin production.

2. Adjust your lighting: Dim your home’s lights or switch to warmer-toned lighting in the evening. You can also use lamps with red or orange light, which are less likely to impact your circadian rhythms.

3. Night mode settings: Many smartphones and computers have a "night mode" feature that reduces blue light emission. Make use of these features to limit exposure in the hours leading up to bedtime.

4. Blue light-blocking glasses: Special glasses designed to filter out blue light may be helpful for some individuals. These glasses can block or reduce the melatonin-suppressing effects of blue light.

5. Apps for blue light reduction: There are several smartphone and computer apps available that reduce blue light emission, allowing you to use your devices before bed without disturbing your sleep.

6. Create a sleep-friendly environment: If you can’t control light sources in your bedroom, consider using an eye mask to block out ambient light and promote better sleep.

In my journey as a neonatologist, one truth has remained constant—no healthcare system can succeed without strong nursing care. We often celebrate breakthroughs in technology and clinical expertise, but at the bedside, where outcomes are truly shaped, it is the nurse who makes the difference.

Nowhere is this more evident than in the Neonatal Intensive Care Unit (NICU), a space I have spent decades working in. Caring for extremely premature babies—sometimes born as early as 24–26 weeks—requires far more than advanced machines or protocols. These fragile lives demand minute-to-minute monitoring, swift clinical judgment, and unwavering attention.

It is the nurse who notices the subtle drop in oxygen levels, the slight change in skin tone, or the early signs of infection. Many times, it is their timely intervention that prevents a complication from becoming a crisis. I have witnessed countless such moments—quiet, uncelebrated, yet life-saving.

What we see in practice is strongly supported by global data. Research has consistently shown that for every additional patient assigned to a nurse, the risk of patient mortality increases by nearly 7%. Hospitals with optimal nurse-to-patient ratios report lower infection rates, shorter hospital stays, and significantly better survival outcomes. These are not marginal gains—they are decisive factors in patient care.

And yet, as healthcare advances, a critical gap is becoming increasingly visible.

Over the past five to six decades, medicine has transformed dramatically. We have moved from general practice to highly specialized and super-specialized care—interventional cardiology, robotic surgeries, advanced oncology, and neonatal care that can support extremely preterm infants. These advancements have contributed to a remarkable rise in life expectancy in India—from around 41 years in the 1960s to over 69 years today.

But while medicine has rapidly specialized, nursing training has not evolved at the same pace. This imbalance is one of the most pressing challenges in healthcare today.

The Global Shortage For Nurses

India, like many parts of the world, faces a significant workforce gap. The World Health Organization estimates a global shortage of nearly 6 million nurses. While we continue to train and recruit more nurses, the real challenge lies in specialized skill development. In many hospitals, nurses are assigned to departments based on immediate needs rather than structured career pathways. They learn on the job, often in high-pressure environments, building expertise through experience.

While this speaks volumes about their dedication and resilience, it also highlights a systemic limitation. Specialized medicine cannot function optimally without specialized nursing.

In a NICU, for instance, managing non-invasive ventilation, performing neonatal resuscitation, ensuring strict infection control, and counselling anxious parents are not basic skills—they are specialized competencies. These require structured training, repeated practice, and continuous upskilling.

Bridging The Gap: Training Initiatives In Practice

Recognizing this gap, we recently conducted 10 focused workshops across Karnataka as part of the State Neonatal Nurses Conference. These workshops were designed to strengthen critical skills such as the Neonatal Resuscitation Program (NRP), Non-Invasive Ventilation (NIV), and effective communication within the NICU. What stood out was the response.

Participation exceeded capacity by nearly four times. Nurses travelled long distances, eager to learn, engage, and enhance their skills. This was not just enthusiasm—it was intent. It was a clear indication that nurses are ready to grow, to specialize, and to deliver better outcomes. What they need is access—structured, scalable, and sustained opportunities to learn.

Globally, the impact of investing in nursing education is well documented. Hospitals with a higher proportion of well-trained nurses have reported up to 20% lower mortality rates in certain patient groups. Healthcare systems that prioritize continuous professional development for nurses consistently demonstrate better patient safety outcomes and higher satisfaction levels.

The Need for Systemic Change in Nursing Education

India has begun to take steps in this direction. Initiatives such as the Neonatal Nurse Fellowship introduced by the National Neonatology Forum are important milestones. However, these programs, while valuable, are not accessible to all. Financial constraints, time commitments, and geographical limitations often restrict participation.

This calls for a shift in approach.

Training must move beyond select programs and become an integral part of the healthcare system. We need modular learning formats, simulation-based training, in-hospital skill development programs, and digital platforms that allow continuous learning. Every nurse—irrespective of location or institution—should have access to opportunities that help them grow.

Because ultimately, no matter how advanced our systems become, outcomes depend on the people delivering care.

I often remind my teams of a simple reality—without strong nursing care, the success of any medical speciality is less than 50%.

Beyond systems, statistics, and strategy lies the human side of nursing—a dimension that cannot be measured but is deeply felt.

In the NICU, nurses are not just caregivers to fragile newborns; they are also a source of strength for parents navigating uncertainty and fear. I have seen nurses hold the hands of anxious mothers, explain complex medical situations with patience, and provide reassurance during some of the most difficult moments a family can experience. They are the bridge between clinical excellence and emotional care.

And yet, despite their central role, nurses often remain under-recognized and under-supported. If we are serious about strengthening healthcare, this must change.

Empowering nurses is not just about improving skills—it is about acknowledging their value, creating structured career pathways, and ensuring they are included in decision-making processes. It is about building a culture of respect, where nursing is seen not as support, but as a critical pillar of care delivery.

The future of healthcare will not be defined by technology alone. It will be defined by the strength, capability, and empowerment of its workforce.

And at the heart of that workforce are our nurses. If we want safer hospitals, better clinical outcomes, and resilient healthcare systems, the path forward is clear—we must invest in our nurses, not just in numbers, but in their growth, training, and empowerment. Because in every critical moment I have witnessed, one truth stands out—quietly, consistently, and powerfully: Empowered nurses don’t just support care. Empowered nurses save lives.

Dr. R. Kishore Kumar is President – National Neonatology Forum, Karnataka Chapter

Post-viral syndromes are a classic example of the body not feeling better even after the viraemia is over. When a viral infection ends, most people expect life to quickly return to normal.

For many, it does, but for some, recovery stretches on for weeks or even months. This condition, often called a post-viral syndrome, is now being seen more clearly across the country, especially after the COVID-19 pandemic. Thus, the main question that arises is why doesn’t recovery end when the infection is gone? The answer is that the body does not always ‘reset’ immediately.

Why Symptoms Continue After the Infection Clears?

During an infection, the body’s defense system becomes highly active to fight the virus. In some people, this response does not completely settle down even after the virus has been cleared. This can lead to ongoing tiredness, body aches, or a general feeling of being unwell. This could be due to the immune system remaining partially activated.

In certain cases, the body’s defense system may even start reacting in an unbalanced way, affecting normal tissues. This is why some people develop symptoms like joint pains, palpitations, or dizziness after a viral illness, even though tests may not show an active infection.

Another important reason is energy depletion. Viral infections can temporarily affect how the body produces and uses energy. As a result, even small physical or mental efforts can feel exhausting. Many patients describe a pattern where they feel better, try to return to normal activity, and then feel worse again. This cycle can delay full recovery. The nervous system can also be affected. Some people experience what is commonly called ‘brain fog’, poor sleep, or a sense of imbalance in heart rate and blood pressure. These symptoms are real and are part of the body’s recovery process.

POTS Syndrome

Also, there is something called POT (Positional Orthostatic Tachycardia) syndrome. Patients, when they get up and stand, develop mild giddiness and palpitations.

It is also important to understand that the body may take time to rebuild strength. Muscle loss, physical inactivity, and lack of appetite are common effects following an illness.

Why Recovery Should Not Be Rushed

Consequently, when an individual has recovered from the virus, it is more than just getting rid of the virus. It involves restoring and getting stronger over time. Most importantly, recovery should never be rushed. Pushing too hard or returning to high levels of activity too soon after becoming ill can lead to worsening of symptoms and therefore prolong the recovery time.

A more effective way to recover is by taking a gradual, steady approach. Recovery involves resting adequately, maintaining a nutritious diet, engaging in light exercise and receiving adequate amounts of sleep and at the same time being aware of how your body feels. Long-term symptoms are not in your head. They are part of the process of healing that occurs after some forms of infection.

Most people will recover, but patience and using proper methods are key to recovering completely. It is also important to understand that recovery involves rebuilding the strength that the body needs time to restore this balance.

It is important not to get carried away assuming post-viral syndrome, but consult a physician and not miss out on an underlying medical disorder, and investigate appropriately.

Non-alcoholic fatty liver disease (NAFLD) is the commonest non-communicable disease in Indian women, with a prevalence rate of 35%. Globally, 30% of the population is suffering from NAFLD, and this projection is expected to progress to 56%, in a similar range to diabetes and obesity.

In India, the high rate of NAFLD is driven by the adoption of a westernized lifestyle, associated comorbidities like diabetes, obesity & hypertension. Fatty liver is known to progress to cirrhosis (end-stage liver disease) or liver cancer (hepatocellular cancer) if left untreated, which affects the survival rates and implicates a poor prognosis.

Unfortunately, it’s a silent disease and often presents at an advanced stage, leading to serious complications.

Why Women Face Different Risks Than Men

Women tend to have different outcomes with fatty liver disease when compared to men. Women may have a higher risk of life secondary to NAFLD when compared with men of the same age group. Conditions like age of menarche (first menstrual period), menopause status, alteration in reproductive hormones, and sarcopenia (muscle loss) may affect the development of NAFLD. Hormonal issues like oestrogen deficiency and Polycystic Ovarian Disease (PCOD) increase the risk of developing NAFLD. Women with type 2 diabetes, obesity, and larger waist circumference (metabolic syndrome) are more prone to NAFLD.

Besides physiological and hormonal factors, there are social and cultural factors like limited autonomy for women, hierarchy based on earning potential, and poor literacy levels (especially in rural regions), which may create health neglect or gender bias towards women’s health, and conditions like NAFLD can go neglected or ignored.

Fatty Liver Disease Is Preventable and Reversible

The urban populace has its own share of modern problems like alcohol, smoking, and a sedentary lifestyle. Fatty liver is totally preventable and reversible if diagnosed at an early stage with simple lifestyle modifications. Studies show that a diet high in protein and low in carbohydrates, or a diet with fruits and vegetables and whole grains combined with exercise for 30 minutes a day and 5 days a week, can significantly reverse fatty liver and liver cell inflammation.

There are no gender-based guidelines to treat or prevent this problem. In general, reducing the cardiovascular and metabolic risk remains the cornerstone to treat NAFLD in both men and women.

Weight Loss Can Significantly Improve Liver Health

Research shows that up to 10% weight loss can reduce liver scarring and inflammation, whereas between 5-10% weight loss can reduce liver fat significantly.

There is some evidence that suggests black coffee (without sugar), Vitamin E, and Omega-3 fatty acids help prevent and reverse NAFLD. Specific and early consultation with a specialist (e.g. cardiologist, endocrinologist, or a gynecologist) can control the morbidity and mortality around the problem. Fatty liver has reached an epidemic level problem and therefore needs mass screening & awareness programs.

Early Diagnosis Is the Key

Early diagnosis is key and can be achieved by simple USG of the liver or Fibro scan combined with simple blood tests, liver LFT’s (liver function tests). Unfortunately, there’s no pill to replace exercise or a healthy lifestyle; otherwise, it would have been a blockbuster medicine.

However, the good news is this deadly and silent disease has a simple and inexpensive solution: a healthy diet and plenty of exercise, which is accessible to all. There is also an urgent need to increase awareness in women on NAFLD and ways to combat it, so they can get access to life-saving treatment at the earliest.