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.

Signs That High Cortisol Is Stressing Your Body

Persistent Eye Twitches

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.

Skin Breakouts and Sensitivity

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.

Frequent Bloating and Digestive Issues

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.

Weight Fluctuations

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.

Unexplained Bruising

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.

Cold Symptoms That Won’t Go Away

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.

Also Read: Stressed At Work? Your Sleep Might Be Paying The Price, New Study Shows

Vision Problems

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

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.

Tinnitus or Persistent Ringing in the Ears

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 Inflammation and Chronic Disease

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.

Long-term Consequences of Increased Cortisol

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.

Ways Managing Stress and Cortisol Levels

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.

World Mosquito Day, observed on August 20, raises awareness about mosquito-borne diseases such as dengue, malaria, Zika, yellow fever, and chikungunya and the health risks they pose.

Among these diseases, dengue remains a major public health concern, affecting people across regions worldwide throughout the year.

Dengue Cases: The Latest Numbers

• Global: More than 1.5 million dengue cases and over 500 dengue-related deaths have been reported globally since the beginning of 2026, as of July 31.
• Americas: 1,373,756 cases had been reported as of epidemiological week 26, updated July 23. Of these, 28.9% were laboratory-confirmed, according to WHO PAHO.
• South-East Asia: WHO SEARO bulletins published in June and July reported dengue in Bangladesh, Bhutan, India, Maldives, Myanmar, Nepal, Sri Lanka, Thailand, and Timor-Leste since July 2025.
• India: 22,938 cases had been reported in 2026 as of June. June recorded 6,625 cases, up from 3,747 in May — a 77% increase.

Also read: India’s First Approved Dengue Vaccine: Takeda’s QDENGA Protects Against All Four Virus Serotypes

Why Can Dengue Affect the Kidneys?

Dengue is typically associated with high fever, joint pain, and low platelet counts. However, severe dengue can affect the kidneys and lead to acute kidney injury (AKI).

Speaking to HealthandMe, nephrologists said kidney problems may not always cause symptoms early on, making monitoring particularly important in severe dengue.

Dr. Anupam Roy, Additional Director - Nephrology and Kidney Transplant, Aakash Healthcare Multi-Speciality Hospital, Dwarka, said that recovering from dengue requires careful fluid management, particularly in severe cases.

It is because the kidneys regulate fluids and electrolytes, and changes in circulation caused by dengue can temporarily disrupt their function.

Fever, vomiting, and poor fluid intake can cause dehydration, while severe dengue can cause plasma leakage. Both too little and too much fluid can create problems, making medical supervision important. In hospital, healthcare professionals monitor urine output and signs of dehydration, particularly in patients with complications or underlying health conditions.

After the acute phase, patients should gradually resume eating and drinking according to medical advice. Excessive fluid intake and self-medication should be avoided, particularly when medicines could place additional stress on the kidneys.

“So, it is the quantity issue that must be tackled,” Dr. Roy said.

Signs of Kidney Problems

Read More: Dengue Serotypes Shifting In Young Adults: How India's Indigenous Vaccine Could Help Prevent Severe Disease

According to Dr. Manoj Arora, Consultant Nephrologist, NephroPlus, a network of dialysis centers, warning signs include:

• Decreased urination
• Swelling of the face or legs
• Dark or foamy urine
• Increased blood pressure
• Unusual tiredness
• Nausea
• Breathing problems

Some symptoms can overlap with severe dengue, including continuous vomiting, severe stomach pain, and bleeding.

Who Is at Higher Risk?

Kidney injury is more likely in people with severe dengue or shock. Older people and those with diabetes, hypertension, obesity, or existing kidney problems may also face higher risk.

Seek medical attention for a drastic reduction in urine, new swelling, blood in the urine, worsening breathlessness, confusion, or continuous vomiting.

In hospitalized patients, monitoring is important when creatinine rises, electrolyte levels fluctuate — particularly potassium — or urine output continues to change.

How Can Kidney Damage Be Prevented?

Early recognition and appropriate management are key. Doctors may monitor:

• Fluid balance
• Urine output
• Kidney function
• Electrolyte levels
• Potentially harmful medications

Do not self-medicate or increase fluid intake without medical advice, particularly during severe dengue.

How to Reduce Your Risk of Dengue

Reducing mosquito exposure and preventing mosquito breeding can help lower the risk of dengue.

• Eliminate stagnant water
• Use mosquito repellents
• Use bed nets
• Keep mosquitoes out
• Wear protective clothing
• Check your surroundings regularly.

Are you someone who can spend hours scrolling through short videos on Instagram, YouTube or TikTok? A new study suggests that watching preferred short videos may temporarily quiet brain regions involved in self-control and monitoring, offering a possible clue to why it can be so hard to stop.

Short Videos May Quiet Brain’s Self-Control Network

The research, published in the journal NeuroImage, found that watching preferred short videos may temporarily suppress activity in parts of the brain involved in cognitive control. This effect may also be linked to levels of the brain chemical glutamate.

The study focused on the dorsal anterior cingulate cortex (dACC) and dorsolateral prefrontal cortex (dlPFC). Both are key regions of the cognitive control network, which becomes active during tasks that require mental effort, attention and self-regulation.

Researchers from Zhejiang University in China found that both the dACC and dlPFC showed significant deactivation when participants watched preferred videos to completion, compared with less-preferred videos that were stopped early.

The liked videos significantly reduced activity in both brain regions linked to cognitive control. When participants watched videos they chose to continue, activity in the dACC and dlPFC fell below normal resting levels.

However, disliked videos showed a different pattern. Activity in the dACC remained close to normal, while the dlPFC was still suppressed. Meanwhile, the visual cortex remained active during both types of videos, suggesting the changes were linked to the viewing experience rather than simply looking at a screen.

Glutamate May Influence How The Brain Responds

The small study of 56 participants also examined whether resting levels of two important brain chemicals could help explain differences in how participants’ cognitive control networks responded during short-video viewing.

Glutamate is the brain’s main excitatory neurotransmitter, helping increase neural activity. Gamma-aminobutyric acid (GABA) is the brain’s main inhibitory neurotransmitter, helping reduce or regulate neural activity.

The researchers found that resting-state glutamate levels in the dACC were associated with the extent of brain deactivation. Higher glutamate concentrations were linked to less suppression of activity in both the dACC and dlPFC.

Functional connectivity between the dACC and dlPFC also increased during video viewing, particularly when participants watched their preferred videos.

How Immersive Viewing Affects Brain

The researchers said the findings provide new evidence that immersive viewing of preferred short videos can deactivate the cognitive control network and that individual differences in this response may be linked to glutamate metabolism.

They suggested that the findings could help improve understanding of how digital media consumption interacts with neurochemical processes involved in self-regulation and may offer insights into the neural mechanisms behind excessive short-video use.

The study, however. does not establish that short-video viewing directly causes a loss of self-control or addictive behavior.

Why Excessive Short-Video Maybe Harmful?

Previous research has linked excessive short-video use with changes in attention, focus and mental well-being.

Studies in Nature Communications and research from the American Psychological Association suggest that highly stimulating, rapidly changing content may encourage constant novelty-seeking and make sustained attention more difficult.

Potential effects include:

• Reward-seeking behavior
• Reduced attention span
• Mental fatigue
• Sleep disruption
• Emotional reactivity

Short videos are not inherently harmful, but excessive or compulsive scrolling can become a concern when it interferes with sleep, work, studies or daily life.

Breast cancer is now the most commonly diagnosed cancer among women in India, representing a significant and growing public health concern. According to recent estimates, India recorded approximately 221,757 new breast cancer cases in 2022, making breast cancer the most common cancer among women and accounting for nearly one-fourth of all female cancers in several urban populations1.

Rising urbanisation, lifestyle changes, delayed childbirth, and increasing life expectancy have contributed to the growing incidence. Despite advances in awareness and screening, many women continue to be diagnosed at later stages, underscoring the need for effective, accessible, and patient-centric treatment approaches.

Moving Beyond One-Size-Fits-All Radiation Therapy

As cancer care evolves towards more personalised treatment, brachytherapy is emerging as a targeted alternative that delivers radiation with greater precision.

Also read: Why Flight Attendants, Pilots Face Higher Risk Of Radiation-Linked Cancer Deaths Than Other Occupations?

How Brachytherapy Delivers Radiation Where It Matters Most

Unlike conventional radiation, which passes through normal tissues before reaching the target, brachytherapy focuses treatment directly on the tumour bed. This precision helps maximise treatment effectiveness while reducing potential side effects.

Also read: Groundbreaking Experimental Vaccine May Prevent Pancreatic Cancer From Spreading, Early Trial Finds

A More Personalised Approach to Breast Cancer Treatment

One of the most significant applications of breast brachytherapy is Accelerated Partial Breast Irradiation (APBI). In selected patients with early-stage breast cancer, the risk of recurrence is highest around the original tumour site. APBI targets only this region rather than treating the entire breast.

This focused approach helps protect healthy breast tissue and nearby organs such as the heart and lungs. Advanced imaging and treatment-planning technologies further enhance personalisation by allowing radiation doses to be tailored to the patient's anatomy and tumour characteristics.

Also read: UK Set To Implement Stricter Protocol For Prostate Cancer Testing; Who Is Eligible To Get Tested?

Shorter Treatment Duration, Greater Convenience

A major advantage of brachytherapy is the shorter treatment schedule it offers. Conventional radiation therapy may require daily sessions for three to six weeks, whereas brachytherapy-based APBI can often be completed within a few days.

For patients travelling long distances to access specialised cancer care, this can reduce both the logistical and financial burden of treatment while minimising disruptions to daily life.

Preserving Quality of Life After Cancer

As survival rates improve, quality of life has become a key consideration in breast cancer care. Brachytherapy's targeted approach reduces radiation exposure to healthy tissues and has been associated with favourable cosmetic outcomes.

By combining precision, convenience, and effectiveness, brachytherapy represents an important step towards personalised breast cancer treatment, offering appropriately selected patients an opportunity for effective care with potentially fewer side effects and improved overall treatment experience.

By Dr. Harjot Kaur Bajwa, Senior Consultant Radiation Oncologist and Brachytherapy specialist at the American Oncology Institute, Hyderabad