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Stress is an inevitable part of life, but its consequences are not just mood swings and mental fatigue. Continual stress makes people produce extra cortisol, a hormone that has a critical role in adapting to short-term challenges, but chronically in high quantities it tends to cause harm to the body causing lots of physical and mental disorders.
The adrenal glands produce cortisol, which helps the body control its "fight, flight, or freeze" response. Cortisol temporarily adjusts blood sugar levels, maintains blood pressure, and assists the immune system, among other functions, in short spurts. But when stress persists, cortisol remains high, and necessary functions of the body are interfered with and rendered more susceptible to disease.
According to one survey conducted by the American Psychological Association, stress negatively affects a third of Americans' physical health. Concerns are reinforced by research where studies have shown 80% of primary care visits are stress-related.
But why does stress have such a profound impact? Elevated cortisol limits the immune system's ability to fight infections, disrupts hormonal balance, and triggers inflammation. Over time, these changes can lead to serious health complications.
Do you have involuntary eye spasms? These harmless but annoying twitches often indicate elevated cortisol. The tiny muscles around the eyes are extremely sensitive to stress, contracting or spasming because of cortisol's stimulant-like effects.
Your skin often reflects what is going on inside your body, and chronic stress can cause inflammatory skin conditions. Elevated cortisol levels stimulate oil production, which exacerbates acne. It also slows down the healing process, worsens conditions like eczema, and contributes to general irritation of the skin.
It also interferes with the body's balance of salt and water, which causes fluid retention and bloating. Excess cortisol also slows down blood flow to the digestive system, which further weakens gut bacteria and causes poor digestion, excess gas, and abdominal discomfort.
High cortisol stimulates the production of insulin, which can cause blood sugar to drop, making people want to eat sugary, high-fat foods. For many, this becomes an excuse to stress-eat and gain weight. For others, the opposite is true: their appetite disappears under stress, causing them to lose weight.
If you’re noticing random bruises, elevated cortisol could be the culprit. This hormone weakens skin proteins and the walls of small blood vessels, making your skin more fragile and prone to damage.
Do you feel rundown or experience muscle aches, fatigue, or upset stomach regularly? Elevated cortisol mimics cold-like symptoms. Long-term stress also weakens the immune system, making you more susceptible to infections.
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Chronic stress can damage your eyesight. Elevated cortisol disrupts blood flow to the eyes, increases eye pressure, and raises the risk of glaucoma. Symptoms like dry eyes, blurred vision, and light sensitivity are also common.
Irregular Menstrual Cycles that disrupt the menstrual period. In females, this leads to hormonal distress causing irregular or missed periods. Over time, it may also disturb fertility.
If you hear ringing, buzzing, or hissing sounds without an apparent source, stress might be the culprit. Cortisol affects the auditory system by interfering with blood flow and nerve function and could be the trigger for tinnitus.
Increased levels of cortisol contribute to inflammation that can exacerbate conditions such as arthritis and promote the development of heart disease. Chronic inflammation is also associated with mental health conditions, including anxiety and depression.
Left unchecked, high cortisol levels can lead to more than just short-term discomfort. Chronic stress has been associated with serious conditions such as heart disease, psychiatric disorders, and metabolic syndromes. A 2013 study published in JAMA Internal Medicine underlined the link between stress and physical health, with recent research in Neurobiology of Stres supporting these findings.
Managing stress and cortisol levels is essential for maintaining overall health. One effective approach is practicing mindfulness through meditation or yoga, which helps lower cortisol by calming the mind and promoting relaxation. Regular physical exercise, especially aerobic activities, helps reduce stress hormones and boosts endorphins. Prioritizing sleep is crucial, as lack of rest can increase cortisol levels; aim for 7-9 hours per night.
Another remedy is an overall balanced diet full of anti-inflammatory foods like fruits, vegetables, and whole grains that could manage cortisol production. Finally, it would prevent burnout and chronic stress if proper boundaries were set at work and in personal life.
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Massive wildfires have ravaged several parts of Canada and other regions of the world, filling the air with hazardous smoke. This has triggered health warnings far beyond the fire zones.
While most people experience immediate breathing problems during and after wildfires, experts say that some health effects can persist long after the skies clear.
Wildfire smoke is composed of harmful gases and microscopic particles known as PM2.5. These tiny particles are small enough to travel into our lungs and enter the bloodstream, where they can trigger inflammation throughout the body.
Unlike typical air pollution, wildfire smoke also contains toxic substances released from burning homes, plastics, furniture, vehicles, electronics, and industrial materials, making prolonged exposure particularly harmful.
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Prolonged exposure to wildfire smoke can have long-term effects on the respiratory system. Possible health effects may include:
Children, older adults, and people with existing lung conditions face the highest risk because their lung function is already compromised.
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The tiny particles in wildfire smoke don't just stay confined to the lungs. Once they enter the bloodstream, they can affect the cardiovascular system. In the long run, research says wildfire smoke exposure can lead to:
With frequent incidences of wildfires, scientists are looking into how wildfire smoke affects the brain. Emerging evidence suggests smoke exposure may contribute to:
Wildfires can affect mental health in more than one way. Besides the stress of evacuation and property loss, smoke exposure itself may contribute to mental health problems directly. One is at the risk of the following mental health issues after exposure:
Communities repeatedly exposed to wildfire events may experience prolonged psychological distress that could often go undetected.
Growing evidence suggests that long-term exposure to wildfire smoke may increase the risk of several cancers. Studies have reported possible associations with lung cancer, breast cancer, colorectal cancer, bladder cancer, and certain blood cancers
Although researchers say more studies are needed to establish a direct cause-and-effect relationship, the findings highlight the importance of limiting repeated smoke exposure.
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Pregnant women are among the groups considered most vulnerable to wildfire smoke. Research suggests exposure during pregnancy may increase the risk of preterm birth, low birth weight and other pregnancy complications.
Healthcare providers recommend minimizing outdoor exposure whenever air quality deteriorates.
Even after visible smoke disappears, harmful particles may remain in the air. Experts recommend:
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When we think of dialysis, we often picture a machine filtering blood and keeping patients alive. What rarely comes to mind is the small blood vessel in the arm that makes the entire process possible.
For every patient on haemodialysis, the arteriovenous (AV) fistula is quite literally a lifeline. Without it, dialysis cannot be performed effectively. Yet, despite being one of the most important parts of treatment, fistula care remains one of the least understood aspects of kidney disease.
This silent gap in awareness is costing patients their lifeline.
India adds nearly 2.2 lakh new patients with end-stage kidney disease every year, creating a demand for over 3.4 crore dialysis sessions annually.
One of the biggest challenges we see in clinical practice is that patients often seek medical help only after the fistula has already stopped functioning.
The warning signs are usually ignored.
The vibration over the fistula becomes weaker. The arm begins to swell. Bleeding continues longer than usual after dialysis. Needle insertion becomes increasingly difficult. Sometimes dialysis itself becomes less effective.
By the time patients reach an interventional radiologist or vascular specialist, the fistula may already have developed significant narrowing (stenosis) or complete blockage.
Unfortunately, many of these complications are preventable if detected early.
In our experience, nearly 30% of patients eventually lose their fistula because they report too late, when timely intervention could have salvaged access.
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Unlike diabetes or blood pressure, there is no widespread public awareness around fistula surveillance.
Many dialysis patients receive instructions on medicines and dialysis schedules but very little education on how to examine their fistula every day.
There is also no universally implemented patient education protocol across dialysis centres, leading to inconsistent awareness about fistula care.
The result is simple: patients unknowingly damage the very access that keeps them alive.
Patients should examine their fistula daily.
A healthy fistula has a continuous buzzing sensation or “thrill.” If this vibration becomes weak or disappears, medical attention should be sought immediately.
Similarly, swelling of the arm, redness, prolonged bleeding after dialysis, pain around the fistula, or difficulty during needle insertion should never be dismissed as routine.
These are early warning signs - not inconveniences.
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These small daily habits can often extend the life of a fistula by years.
One of the greatest advances in dialysis access care is that many fistula problems no longer require open surgery.
If narrowing is detected early, minimally invasive image-guided procedures such as fistuloplasty (balloon angioplasty) can restore blood flow, preserve the existing fistula and help patients continue dialysis without interruption.
The key, however, is timing.
A fistula that is evaluated early is often salvageable.
A fistula ignored for weeks may not be.
Every successful fistula represents months of planning, surgery and healing. Losing it means additional procedures, temporary catheters, higher infection risk, increased costs and emotional distress for patients already living with chronic kidney disease.
As doctors, we have become increasingly skilled at creating dialysis access.
The next challenge is ensuring patients know how to protect it.
Because for someone living with kidney failure, the fistula is not just another blood vessel.
It is the lifeline that keeps life moving.
By Dr. Avik Bhattacharyya, Senior Consultant - Interventional Radiology, CK Birla Hospitals, CMRI
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GLP-1 drugs such as Ozempic, Wegovy, Mounjaro and liraglutide, best known for regulating appetite and aiding weight loss, may also help reduce symptoms of binge eating disorder (BED), which affects more than 17 million people worldwide, according to a new study.
The systematic review and meta-analysis, published in the journal eClinicalMedicine, found that GLP-1 drugs, with semaglutide as its key ingredient, reduced binge eating episodes, loss-of-control eating and emotional eating, highlighting their potential role in treating binge eating disorder alongside obesity.
Binge eating disorder affects over 17 million people globally, and around two-thirds of people with the condition also live with overweight or obesity. It is also common among individuals seeking weight-loss treatment.
"Binge eating disorder, where people regularly eat an excessive amount of food while feeling they have lost control, is common and highly impairing, affecting over 17 million people worldwide," said lead author Dr Ilaria Costantini from the Psychiatry Department at University College London (UCL), UK.
"But treatment options are limited and there are currently no approved medications, so there remains a need for better ways to help people living with this condition. We found evidence that weight loss drugs may help to manage some key symptoms of binge eating disorder," Costantini added.
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The researchers analyzed 25 randomized controlled trials conducted across 12 countries on four continents, involving 8,069 participants.
The trials evaluated GLP-1 drugs that target the appetite-regulating hormone GLP-1, including semaglutide (marketed as Ozempic or Wegovy), tirzepatide (Mounjaro) and liraglutide.
These medications suppress appetite by acting on the central nervous system and insulin secretion, delay stomach emptying, and may also influence brain pathways involved in reward and impulse control.
Compared with placebo or other treatments, people taking GLP-1 drugs reported:
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The researchers also found that participants taking GLP-1 drugs reported greater cognitive or dietary restraint, meaning they made more deliberate efforts to limit what they ate.
The benefits extended beyond weight loss, with improvements seen in several behaviors associated with binge eating disorder.
While increased dietary restraint was observed, the researchers cautioned that it remains unclear whether this represents healthy self-regulation or a more rigid, potentially harmful eating pattern that could worsen binge eating over time.
"From the evidence available, we cannot say whether the increase in dietary restraint reflects a positive and helpful form of self-regulation or if it is a more dysfunctional pattern of eating. We hope that future research can clarify whether or not taking weight loss drugs might contribute to more pathological forms of eating restriction such as meal skipping," said Izzy Emptage from UCL Psychiatry.
The researchers said GLP-1 drugs could become an important addition to treatment plans for binge eating disorder when used alongside psychological therapies and social support.
However, they also highlighted important limitations. Most of the studies included in the review had a high risk of bias, were funded by pharmaceutical companies, and rarely included participants with a clinical diagnosis of binge eating disorder, reducing the certainty of the findings.
"GLP-1s may offer a promising additional treatment option for people living with both binge eating and obesity," the researchers said, while stressing that these drugs "should not be viewed as a standalone solution to binge eating disorder."
They added that larger, independently funded clinical trials are needed before these medications can be routinely recommended for treating binge eating disorders.
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