If you have ever slept on your arm and your leg, you might feel like a pins and needles sensation. Some people describe it as a fuzzy numbness, while for others it could be a prickling sensation. Medically, this term is known as paresthesia, which literally translates to "abnormal feeling". In many ways, it actually is the way we feel due to the changes in nerve function.

So, what causes it?

Before we get into that, let's identify how can you take a note of it:

• where you feel the sensation
• how long does the sensation last
• when it first started
• whether or not it is associated with certain positions or postures

Pressure

If you notice that sensation is associated with specific position like sitting or crossing your legs, then it could be related to pressure. When you put pressure on certain areas of your body, it can lead to compression of both, a nerve and its blood supply. Therefore, it temporarily interferes with nerve's function and you experience paresthesia.

Medicines

There are certain medicines for conditions like HIV and cancer can affect nerve function and could lead to paresthesia. Certain supplements too can contribute to paresthesia. A bodybuilding supplement called beta-alanine is also known to cause pins and needles sensation.

As per a 2012 study titled Mechanisms of Itch Evoked by β-Alanine showed that beta-alanine makes your nerves more sensitive, resulting in itching and tingling sensations. There are long-term supplementation of vitamin B6 can also cause you to feel the sensation, especially if you feel numbness in hands and feet.

Other causes

There are other causes which are also related to such feeling:

• stroke or transient ischemic attack
• head or limb trauma
• vitamin B12 deficiency
• multiple sclerosis
• panic attack
• diabetes
• alcohol abuse
• carpal-, cubital-, or tarsal tunnel syndrome
• sciatica
• thoracic outlet syndrome
• sjogren’s syndrome
• systemic sclerosis
• vasculitis
• rheumatoid arthritis
• lupus
• encephalitis
• Lyme disease
• HIV
• heavy metal toxicity
• tumor

Is it dangerous?

This feeling is usually not dangerous, however, if there are underlying cause, it could be worrisome.

Concerning symptoms may include:

• fever
• fatigue
• weakness
• unintended weight loss
• night sweats
• body aches
• changes in vision, hearing, or speech
• changes in appetite or thirst
• dizziness
• light-headedness
• anxiety
• pain from a recent injury to the area
• recent or current illness

What is the feeling like?

The pins and needles feels like burning, pricking, itching, and crawling. The most common way people describe this as is "fallen asleep" of a certain body part. It starts as a tingling numbness and becomes a bit dull, and fuzzy feeling.

What can be done when such happens all over your body?

Usually, this sensation is rare in all over your body and it only affects a couple of your body parts. For instance, in vitamin B6-related paresthesia, you feel the sensation in your hands and feel but not in other body parts.

However, if you do feel so, you can first try to reposition yourself, and do some stretches which will help you improve your blood circulation. If changing positions does not work, go see your healthcare professional and consult with them for any medication.

A lung cancer diagnosis shatters worlds. It thrusts patients into a whirlwind of fear, confusion, and uncertainty. What now? How will I cope? Is this the end? These questions are inevitable and urgent. Yet, amid the anxiety, many patients harbor a dangerous belief: that if cancer has taken hold, quitting smoking is pointless.

It's not just a myth, it’s dangerous. Newer studies show quitting smoking even after a cancer diagnosis can significantly improve survival, make treatments more effective, and alleviate symptoms. In other words: even after cancer strikes, letting go of cigarettes can save your life.

In many small towns across India, where awareness about cancer and tobacco risks is limited, patients often continue to smoke despite their diagnosis. “Some feel it is too late to stop. Others are too addicted or too hopeless to try,” says Dr. Ruchi Singh, HOD & Senior Consultant of Radiation Oncology at Asian Hospital. This is the kind of thinking that kills from the inside out.

The reality is the opposite. Dr. Singh emphasizes, “We try to explain … it is never too late. If they stop smoking, even after the cancer has started, the treatment becomes more effective. It is one of the most important things they can do for themselves.”

Every cigarette after diagnosis undermines treatment, weakens the body, and shortens survival. But should someone quit even late into their cancer journey their lungs begin to heal, treatments work better, and recurrence becomes less likely.

How Does Quitting Smoking Extends or Saves Lives?

Global research aligns with Dr. Singh’s clinical advise, a study by IARC and Russian oncologists followed 517 lung cancer patients who smoked at diagnosis. Those who quit within three months lived 22 months longer on average and had 33% lower mortality risk and 30% lower disease progression, regardless of stage or smoking intensity.

The Prospective cohort of the Annals of Internal Medicine confirmed quitting after diagnosis yields meaningful survival benefits.

MUSC Hollings Cancer Center. A Harvard study of nearly 5,600 non-small cell lung cancer (NSCLC) patients found former smokers lived longer than current smokers, suggesting even pre-diagnosis quitting increases survival. Additional studies show quitting at or around diagnosis reduces mortality significantly and improves outcomes across all stages of NSCLC.

Smoking cessation isn’t just beneficial—it is one of the most powerful lifesaving interventions for lung cancer patients.

People tend to discount vaccines or preventive care because success makes the threat invisible. Lung cancer prevention has been a public health battle for decades. Policymakers and physicians worked to reduce smoking rates, and incidence fell. But once a cancer diagnosis arrives, all remission plans depend on a foundation of good habits—like quitting tobacco.

Tobacco smoke introduces toxins, weakens immune function, and diminishes treatment outcomes. Continuing to smoke after diagnosis:

• Lowers treatment efficacy
• Increases post-surgery complications
• Heightens the risk of recurrence or second primary cancers
• Shortens survival significantly
• Quitting reverses much of that risk—even post-diagnosis.

How to Quit Smoking After Lung Cancer Diagnosis?

Treatment regimens already overwhelm patients. Quitting smoking under stress and physical duress is tough—but not impossible. With the right support, patients dramatically increase their success odds. Here’s a compassionate roadmap:

1. Set your quit date now, delay weakens motivation and clarity.
2. Seek medical support, consult your oncologist or a specialist in Siliguri. Therapy, nicotine replacements, or counseling can double your quitting success.
3. Lean on loved ones, share your commitment and ask for accountability.
4. Identify your triggers- stress, discomfort, or routine can push you back. Replace smoking with walking, meditation, or tea.
5. Shift lifestyle habits and replace “smoke with morning coffee” rituals with alternative rituals—like stretching or herbal tea.
6. Build habits that support health- hydration, nutritious food, gentle movement and joy—these restore lung health and resilience.

Indeed, about 36% of tobacco-linked lung cancer patients manage to quit after diagnosis. Those are lives reclaimed.

Lung cancer still has a stigma. Many see it as self-inflicted. That stigma often delays help—including quitting support. But as Dr. Singh reminds us: “People think cancer means a death sentence. But many cases are treatable, especially if caught early. If someone quits smoking, we see real improvement such as better breathing, better recovery after surgery, and fewer chances of the cancer coming back.”

For patients, oncology teams, and families, smoking cessation after diagnosis isn’t optional—it’s urgent evidence-backed medicine.

A lung cancer diagnosis changes everything, but it does not define what comes next. Quitting smoking—even when the disease has already appeared—creates space for healing, response, and survival. It says, “I’m still here. I’m still fighting."

If you or someone you love is facing lung cancer- quit, today. It doesn’t erase the past—but it can extend the future. Numbers don’t lie: treatment plus quitting smoking can give us 22 more months, more energy, more peace, and a higher chance of beating this disease. Quitting is more than choice. It’s courage. And it is always worth it.

When you stop for a moment, take a deep breath. How clean do you think is the air you just inhaled? If you live in a city or anywhere near heavy traffic, construction zones, or industrial areas chances are that breath carried more than just oxygen. Increasingly, health experts are raising a red flag: air pollution is becoming just as dangerous for your lungs as cigarette smoke. Unlike a lit cigarette, you can’t see it or smell it as easily, but the damage? It’s happening all the same—quietly, gradually, and across the globe.

On World Lung Cancer Day, it’s time to stop treating pollution as a background inconvenience and start seeing it for what it is: a major, modifiable threat to lung health.

We’ve long understood smoking as the leading cause of lung cancer, but the health narrative is shifting. Air pollution is catching up—and fast. According to the World Health Organization, over 7 million people die each year from air pollution, with billions more living with compromised respiratory health. Dr. Tedros Adhanom Ghebreyesus, Director-General of WHO, didn’t mince words back in 2018 when he said, “Air pollution is the new tobacco.”

The culprits are tiny, invisible particles like PM2.5 and PM10, nitrogen dioxide from vehicles, and toxins from burning biomass or fossil fuels. These pollutants don’t just irritate the lungs—they penetrate deep into lung tissue, triggering inflammation, reducing immune clearance, and increasing the risk of chronic respiratory illnesses and cancer. As the air gets dirtier, lung cancer in non-smokers—especially women and young adults—is on the rise.

Is Air Pollution Is the New Smoking?

We are already witnessing the consequences of environmental neglect warns Dr. Sachin Trivedi, Director of Medical Oncology at HCG ICS Khubchandani Cancer Centre, further adding, "Cigarette smoking has been known to be the major cause of lung cancer over the past decades. But there is a more recent and equally threatening danger that is on the rise: air pollution."

Dr. Trivedi highlights that a significant number of lung cancer diagnoses are now occurring in non-smokers, suggesting a stronger role for environmental pollutants. From vehicle emissions and industrial fumes to household fuel burning, the sources of this silent threat are everywhere. These pollutants infiltrate deep into the lungs, sparking chronic inflammation, oxidative stress, DNA damage, and even malignant mutations.

Why Lung Damage Due To Pollution Doesn’t Show Symptoms?

Even more concerning, these changes often don’t produce symptoms until the disease is advanced. Which is why early detection, lifestyle awareness, and pollution avoidance are critical. Dr. Trivedi urges individuals to recognize and act on subtle warning signs like chronic cough, shortness of breath, or unexplained weight loss, especially among non-smokers who may not suspect lung cancer.

5 Lung-Saving Habits You Can Practice Daily

Despite the scale of the problem, Dr. Trivedi emphasizes that it’s possible to shield your lungs through smart, consistent habits:

1. Wear a Protective Mask Outdoors

Especially in high-traffic or industrial areas, an N95 mask can block harmful particles like PM2.5. It’s a frontline defense your lungs will thank you for.

2. Maintain Clean Indoor Air

Ventilation is key. Use exhaust fans in kitchens, avoid indoor smoking, and install HEPA-filter air purifiers in high-pollution zones. Urban homes need this extra layer of air hygiene.

3. Limit Outdoor Time on High AQI Days

Track air quality through reliable apps. Skip rush hour outings and outdoor workouts when air quality is poor. Exposure control is protection.

4. Eat an Antioxidant-Rich, Lung-Friendly Diet

What you eat matters. A diet high in vitamins A, C, and E from foods like berries, citrus fruits, broccoli, and nuts can counter oxidative lung damage. Turmeric and green tea also offer anti-inflammatory benefits.

5. Don’t Dismiss Early Symptoms

A persistent cough or breathlessness isn’t always a passing cold. Get medical attention early—especially if you're a non-smoker experiencing unusual respiratory symptoms.

Dr. Devendra Parikh, Consultant in Surgical Oncology at HCG Aastha Cancer Centre, adds in a perspective, "Chronic polluted air harms our lungs just as smoking does: it silently, over time, injures delicate tissue and raises cancer risk. He stresses that fine particles from cooking smoke, traffic fumes, or even poorly ventilated homes carry microscopic toxins that inflame lung tissue and trigger genetic changes." He further shares more ways in which you can protect yourself

• Checking your local AQI each morning helps you make smarter decisions. When air quality dips, stay indoors and keep windows shut.
• These devices capture up to 99.97% of fine particles, drastically improving indoor air. Even running a unit for a few hours can ease respiratory strain.
• A proper N95 or KN95 mask creates a secure barrier against inhaling toxic particles. It’s essential during commutes or outdoor errands on high-smog days.
• Simple breathwork techniques or pranayama for five minutes daily can help clear the lungs and improve capacity.
• For those over 50 or with occupational exposure, low-dose CT scans can detect early signs of lung cancer—even before symptoms begin. Early action saves lives.

You can’t filter the world. But you can control your exposure, build resilient habits, and stay alert to what your lungs are telling you. The new reality is this: pollution is the new cigarette, and we can no longer afford to breathe without awareness. On World Lung Cancer Day and beyond—your breath is worth protecting. In cities where clean air isn’t guaranteed, your daily choices are your lungs’ best defense.

Pollution may feel as unavoidable as city noise, but it doesn’t have to be as destructive. By weaving these habits into your daily life, you give your lungs the best chance to clear toxins, reduce inflammation, and ward off the long-term threat of lung cancer.

Polycystic Ovary Syndrome (PCOS) is often dismissed as a reproductive or cosmetic issue—a condition marked by irregular periods, acne, and weight fluctuations. But the hormonal and metabolic underpinnings of PCOS go much deeper. New findings presented at ENDO 2025, the annual meeting of the Endocrine Society, now highlight a troubling link: PCOS may significantly increase the risk of vascular events in women with thrombotic disease, and these events are occurring at increasingly younger ages.

The research, presented by a team from Riverside University Health System Medical Center and supported by national health data, suggests that the combination of PCOS and thrombotic disease creates a more dangerous cardiovascular profile, one that might be going under-recognized in clinical settings.

The analysis drew on records from the National Inpatient Sample (NIS), evaluating over 205,000 women hospitalized between 2016 and 2022 for thrombotic, atherosclerotic, or cerebrovascular diseases. The goal was to see how outcomes differed based on the presence or absence of comorbid PCOS. The findings were both significant and sobering:

Women with both PCOS and thrombotic disease had higher stroke rates (14.81%) compared to those without PCOS (11.91%).

A greater percentage of women with PCOS were under the age of 50 at the time of their vascular event compared to those without PCOS across all categories—thrombotic, atherosclerotic, and cerebrovascular.

Also Read: Your Home May Look Clean, But These 8 Spots Are Dirtier Than You Think

Despite the younger age of presentation, in-hospital mortality rates were similar between women with and without PCOS, suggesting the seriousness of these events in younger populations is not being offset by age-related resilience.

Dr. Alexander Lim, DO, who presented the findings, noted, “We found that cardiovascular events in women with PCOS were more likely to occur at an earlier age. The risk tends to decrease with age, possibly due to underdiagnosis of PCOS in older women or survivorship bias.”

Why Metabolic Difficulties Due To PCOS Lead Vascular Complications?

To understand why PCOS might elevate vascular risk, it's crucial to look at its underlying pathology. PCOS is not just a hormonal disorder—it’s also deeply metabolic.

Women with PCOS frequently exhibit insulin resistance, even if they are not overweight. This insulin resistance is a precursor to type 2 diabetes, hypertension, nonalcoholic fatty liver disease, and dyslipidemia—all conditions that significantly increase the risk of both arterial and venous thrombotic events.

Despite this, clinical management of PCOS often remains centered on cosmetic symptoms (like acne and hirsutism) or fertility concerns, rather than addressing the long-term metabolic and cardiovascular consequences. This treatment gap may explain why vascular events in women with PCOS catch both patients and providers off guard.

Why Current Testing May Be Failing Women?

Another striking aspect of the new research is that women with PCOS who experienced recurrent thrombotic events (strokes, heart attacks, pulmonary embolisms) often showed normal results in standard coagulation tests. This was identified in a diagnostic review by a coagulation management team and later verified through a national data set analysis using TriNetX, a large health research network.

Between 2013 and 2018, researchers used the TriNetX platform to analyze PCOS patients aged 15–75, excluding those with known thrombotic disorders, smoking history, or HIV. They found that thrombotic events occurred at significantly higher rates in women with PCOS compared to matched controls, even though clinical tests failed to detect abnormalities in coagulation.

What this suggests is that standard coagulation assays may not be sensitive enough to detect the unique thrombotic risk profile in PCOS, raising concerns about diagnostic error or delayed interventions.

This is the first large-scale study to systematically evaluate the rate and clinical presentation of thrombotic events in women with PCOS using national data and validated diagnostic algorithms like SPADE (Symptom-Disease Pair Analysis of Diagnostic Error).

By comparing outcomes 90 days prior to major thrombotic events, the researchers identified consistent symptom patterns—including subtle indicators—that could serve as early warning signs for intervention. However, the precise biological mechanisms behind thrombosis in PCOS remain poorly understood.

The message is clear: PCOS isn’t just a reproductive disorder—it’s a systemic, vascular-risk condition that can dramatically impact a woman’s health long before menopause. Clinicians need to think beyond fertility and skin health and recognize that young women with PCOS may be walking around with unrecognized cardiovascular vulnerabilities.

For women living with PCOS, this means that a heart-healthy lifestyle—including regular cardiovascular screening, metabolic management, and awareness of symptoms like chest pain, migraines, and swelling—needs to be part of long-term care, not just pregnancy planning.