Move over white noise—pink noise is the latest trend gaining popularity among people seeking better sleep and deeper relaxation. This softer, more soothing sound is fast becoming a go-to tool, alongside brown and green noise, in what some call a 'rainbow of relaxation.' Each of these coloured sounds is believed to influence sleep, focus, and overall calm—but is there any science to support the claims?

What Is Pink Noise?

Though the research is still in its early stages, that hasn’t stopped people from spending hours listening to these sounds on YouTube or through meditation apps that now offer curated colour-noise playlists under paid subscriptions.

To understand pink noise, it's helpful to first look at white noise — the most well-known of the group. White noise resembles the static heard on a television or radio and is defined by sound engineers as containing equal volume across all frequencies detectable by the human ear. It gets its name from white light, which contains all visible colour wavelengths.

However, white noise’s high frequencies can be harsh. That’s where pink noise comes in — it reduces the intensity of higher frequencies, producing a softer, lower-pitched sound similar to rain or ocean waves. Brown noise goes even deeper, offering a richer rumble that many find soothing.

While pink, white, and brown noise have clear definitions in audio engineering, other colour noises—like green or blue—are newer and more loosely defined.

What Does Research Say?

Though still limited, there’s some emerging science behind colour noises. A recent review of small studies found that both white and pink noise may offer minor benefits to people with attention-deficit/hyperactivity disorder (ADHD). According to Joel Nigg, an ADHD researcher at Oregon Health & Science University, these noises may stimulate the brain without offering actual information—which helps prevent distraction.

White noise has also been used in tinnitus treatment—helping mask the ringing or buzzing in the ears. Meanwhile, scientists at Northwestern University are exploring how short bursts of pink noise might boost slow-wave brain activity during deep sleep. Preliminary studies suggest that these pink noise pulses could enhance memory and promote relaxation.

Dr. Roneil Malkani, a neurology professor at Northwestern University Feinberg School of Medicine, explains that pink noise closely mirrors the natural frequency distribution of brain waves seen during slow-wave sleep. This similarity could help explain its calming effect. If the research holds up, it may lead to devices that use personalised pink noise to improve memory or sleep quality. However, Dr. Malkani cautions that “there’s still a lot of work we have to do.”

Is It Safe to Try?

If colour noises feel relaxing or help block distractions, they can be a helpful tool. Just be mindful of volume. “Keep it quiet to avoid hearing damage and give your ears regular breaks,” Nigg advises. As the trend grows, pink noise may prove to be more than just a fad, offering a gentle, non-invasive way to improve rest and well-being.

ALSO READ: What Is Moon Breathing? How Does It Promote Sleep?

Incorporating enough fruits and vegetables into your daily meals can be a challenge—especially for those with picky palates. Yet, these plant-based foods are nutritional powerhouses, and one often overlooked leafy green in particular may deserve a second look: turnip greens.

A cup of cooked turnip greens contains fewer than 60 calories, but don’t let that fool you. This humble vegetable delivers an impressive 4.87 grams of protein, 5.05 grams of fibre, 39.1 milligrams of magnesium, 209 milligrams of calcium, and 29.7 milligrams of vitamin C. Despite this, its naturally bitter taste can be off-putting for many.

Kathleen Benson, a registered dietitian-nutritionist with Top Nutrition Coaching, says preparation is key. “You can toss turnip greens into soups or add them to a grain bowl with a tangy dressing to balance out the bitterness,” she suggests. A little creativity in the kitchen can go a long way in making these greens more palatable—and more beneficial to your health.

Why bother with turnip greens? Beyond their robust nutrient profile, they belong to the Brassicaceae family, also known as cruciferous vegetables. This puts them in the same league as kale, broccoli, and Brussels sprouts when it comes to health benefits. Among the most noteworthy is their potential to prevent cancer.

The cancer-fighting power of turnip greens is attributed to their glucosinolate content—naturally occurring compounds that can interfere with cancer development. A 2023 review in Medical Oncology emphasized their usefulness for both cancer prevention and treatment. Another review published in 2009 in Molecular Nutrition & Food Research noted a decreased cancer risk among people who regularly consumed these sulfur-rich compounds.

But the benefits don’t stop there. The calcium and magnesium in turnip greens support strong bones and play a vital role in maintaining healthy muscles, circulation, and nerve function. A 2011 study in The American Journal of Clinical Nutrition also found that eating cruciferous vegetables like turnip greens may lower the risk of cardiovascular death for both men and women.

Vitamin C, another major nutrient found in turnip greens, is known for boosting immune health and aiding in tissue repair. This makes the vegetable an excellent ally in fighting off illness and helping the body heal from injury.

To make turnip greens more enjoyable, Benson recommends cooking methods that enhance their taste while preserving nutrients. Acidic ingredients like vinegar or lemon juice can "cut the bitterness." Garlic and olive oil not only add flavor but help the body absorb fat-soluble vitamins such as A and K. While cooking may slightly reduce the greens’ vitamin C content, Benson has a fix: "Adding a squeeze of lemon at the end can brighten the flavor even more and help preserve some of the vitamin C in the dish."

Turnip greens might not be the first vegetable that comes to mind, but with the right preparation, they can be both delicious and incredibly good for your health.

Flying was once a distant dream, but with the invention of aeroplanes, it has become a routine and widely accessible means of travel. According to the International Air Transport Association (IATA), nearly 100,000 flights take off around the world each day. In 2024 alone, an estimated 4.4 billion passengers flew globally. In the United States, the Bureau of Transportation Statistics (BTS) recorded a historic peak of 848 million passengers in the same year.

The popularity of air travel has not only grown in volume but also in safety. The IATA reported that the global accident rate in 2023 was just one accident per 1.26 million flights — the safest it has been in decades. Research consistently shows that air travel is statistically safer in terms of fatalities than any other common mode of transport.

Yet for some, flying remains a source of significant distress. Known as aviophobia, the fear of flying is a persistent and intense anxiety that goes far beyond typical nervousness. People with aviophobia often dread flying days or even weeks in advance, and their fear can become overwhelming.

How To Manage Aviophobia

If you suffer from a fear of flying, several techniques may help ease your discomfort.

Stay Centered

Try deep breathing exercises—inhale for four counts, then exhale for six. Repeat a calming mantra, such as reminding yourself that air travel is the safest form of transportation. Reframe your focus by thinking about the excitement awaiting you upon arrival instead of dwelling on your fears.

Find A Focus

Engage in grounding techniques, such as crossing your arms and ankles while breathing deeply. Use your senses: observe five things you can see, four you can touch, three you can hear, two you can smell, and one you can taste. Hold a comforting item like a stress ball or smooth stone. Listening to calming audio, like music or meditation, and visualizing peaceful places can also help.

Reduce External Stressors

Pull down the window shade to avoid watching the scenery fly by. Use noise-canceling headphones to block out cabin noise, and wear an eye mask to minimize bright lights.

Prepare For Anxiety

Practice mindfulness or meditation for a week or two before your flight. If needed, speak to a therapist before flying. If possible, visit the airport in advance or visualize the process of checking in and boarding to feel more in control.

Distract Yourself

Load your device with movies or shows, bring a book, work on puzzles, journal, listen to a podcast, or play a mobile game to occupy your mind during the flight.

Avoid Added Anxiety Triggers

Steer clear of caffeine, sugary snacks, and energy drinks before flying, as these can increase feelings of anxiety.

Understand Your Specific Fear

Pinpoint what aspect of flying scares you. If it's the fear of losing control, reading about aviation safety might help. For claustrophobia, consider booking an aisle seat or requesting early boarding.

Lymphedema is a progressive and chronic condition resulting from the accumulation of lymphatic fluid in the tissues of the body, causing swelling. Swelling results when the lymphatic system cannot effectively drain protein-rich fluid from the interstitium—a fluid-filled space between internal structures such as organs and muscles and the skin.

Lymphedema swelling may appear in different areas of the body, depending on the severity and advancement of the condition. The most frequently involved areas are the arms and legs, where fluid accumulation is typically most apparent. Lymphedema may, however, involve more sensitive or less conspicuous areas like the genitals, face, and neck. Sometimes the swelling can be in the wall of the chest or even the oral cavity itself, causing inconvenience and functional compromise. The place of swelling depends on the nature of the etiology—either primary or secondary lymphedema—and can actually have a deep impact on a patient's life.

Outside of physical pain and deformity, lymphedema frequently has psychological and social costs. Patients can suffer from pain, decreased mobility, and emotional distress because of swelling that is noticeable or because of ongoing therapy.

Primary vs. Secondary Lymphedema: What's the Difference?

Primary Lymphedema is uncommon and usually resultant from birth defects or genetic mutations in the lymphatic system. It occurs in about 1 out of 100,000 individuals.

Secondary Lymphedema is more prevalent, occurring in approximately 1 in 1,000 individuals in the U.S. It arises as a result of injury or blockage of lymph vessels by external factors, including:

• Cancer therapies (such as radiation or surgery)
• Infections
• Trauma
• Chronic venous insufficiency

Primary lymphedema is comparatively uncommon, occurring in about 1 in 100,000 people. It is a result of congenital or genetic malformations of the lymphatic system. Dr. Manokaran clarifies, "This condition can occur at birth, during puberty, or even later in adulthood. It usually happens without a visible cause but is based on the patient's genetic structure."

Diagnosis is generally based on careful patient history and sophisticated imaging procedures like lymphangiograms, lymphoscintigrams, or MR lymphangiograms, which provide visualization of structural defects in the lymphatic channels.

Treatment starts conservatively with manual lymphatic drainage (MLD), compression bandaging, and stringent skin hygiene to minimize fluid accumulation and prevent infections. For advanced cases, surgical interventions such as lymphovenous anastomosis (LVA) are options. "Microsurgical procedures such as LVA are game-changers for patients whose symptoms don't respond to conservative therapies," explains Dr. Manokaran.

Secondary lymphedema is much more prevalent, affecting about 1 in 1,000 individuals in the United States — frequently as a consequence of cancer therapy, infection, trauma, or surgery. "The etiology is widespread," states Dr. Manokaran, "from parasitic infection in the tropics to post-mastectomy swelling in breast cancer patients."

Infection-related cases can be managed initially with antibiotics and anti-inflammatory drugs. But when the condition is chronic, more aggressive interventions are required. These involve surgical removal of fibrotic tissue or advanced reconstructive techniques such as lymph node transfer or super microsurgery, especially when lymphatic function has been severely impaired.

Patient history continues to be a mainstay of diagnosis in secondary lymphedema, since knowledge of the precipitating event can influence the entire treatment strategy.

Symptoms of Lymphedema

Though caused by different factors, both forms of lymphedema share common symptoms, such as:

• Swelling in limbs or proximal regions such as the chest, genitals, and face
• Limited range of motion
• Heaviness and tightness of limbs
• Pain, changed sensations, and color changes in the skin

These symptoms can hinder daily functioning, so early identification is important. "Delayed treatment can lead to irreversible tissue damage," warns Dr. Manokaran.

Is Lymphedema Reversible?

Complete healing is still a pipedream, particularly in cases of advanced status. Still, in stage 1 (early-stage lymphedema), usually reversal is feasible through vigilant treatment. The intent is symptom management, diminishment of swelling, and forestalling progression of the disease.

Early detection is important. Those at risk — including cancer patients, those with a family history, or those in endemic areas — need to watch their bodies carefully and take preventative measures such as lymphatic massage and compression garments.

Management Strategies to Live with Lymphedema

Maintain Skin Integrity

Since lymphedema can impair skin health, daily skin care and moisturizing are very important. Even small cuts or scrapes can quickly become infected, so it's important to clean wounds immediately and apply sunscreen and insect repellent when in the sun.

Adopt Supportive Habits

Loose clothing, resting swollen extremities, and the avoidance of constrictive jewelry can all help alleviate discomfort. Proper sitting — with legs flat and the avoidance of leg crossing — can also facilitate smooth fluid movement. Compression wear for regular travelers, particularly by plane, is highly advisable.

Track Symptoms

A symptom diary assists both patients and practitioners in making adjustments to treatment programs. Be on the lookout for changes in swelling, coloration of the skin, or feelings.

Maintain Emotional Wellness

Chronic illness may have psychological consequences. Meeting with support groups or talking with a mental health professional can bring emotional relief and strengthen resilience. "Patients shouldn't underestimate the value of mental health care to treat lymphedema," asserts Dr. Manokaran.

Nourish the Body

A healthy, balanced diet packed with fruits, vegetables, and lean protein benefits the lymphatic system. A healthy intake of water maintains fluid balance in the body.

Although primary and secondary lymphedema are different in cause and treatment processes, both need early diagnosis, individualized treatment, and a multidisciplinary team approach. With greater awareness, patient activism, and improved medical and surgical procedures, living well with lymphedema is absolutely feasible.

Dr. G. Manokaran, MBBS, MS General Surgery, MCh Plastic Surgery at Apollo Spectra Hospital, Chennai in India