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Stress is an unavoidable part of life, and while it often carries a negative connotation, it is actually a fundamental survival mechanism. When faced with a perceived threat, whether physical or emotional, the body instinctively reacts to protect itself. This automatic response is commonly known as the "fight, flight, or freeze" response. While it serves an essential function in dangerous situations, chronic activation of this response due to daily stressors can have significant consequences for mental and physical health.
The body’s response to stress is rooted in human evolution. When our ancestors encountered a predator, their nervous systems immediately prepared them to either confront the threat (fight), escape to safety (flight), or become still and unnoticed (freeze). While modern-day stressors may not include wild animals, our nervous system reacts similarly to job pressures, financial worries, or social conflicts.
According to the Cleveland Clinic, stress is the body's response to change, activating a physiological reaction that helps us adapt and protect ourselves. While short-term stress can be beneficial, prolonged exposure can lead to an overactive stress response, negatively impacting overall well-being.
The fight response prepares the body for direct action. When triggered, the nervous system releases adrenaline, increasing heart rate, blood pressure, and muscle tension. While this reaction once helped early humans fend off predators, today it manifests as irritability, frustration, or aggression.
For instance, the employee who has experienced too much workload may work extremely long hours just to succeed. In short term, the action may produce good results but mostly ends in burnout, anxiety, and physical illness, for example, tension headache or digestion problems.
The flight response triggers an intense need to remove oneself from a stressful situation. Just as our ancestors would flee from danger, modern individuals may avoid conflict, quit jobs impulsively, or detach from relationships when overwhelmed.
Flight mode is linked with restlessness and anxiety. Individuals may have a sense of needing to get up and go-pacing, changing environments constantly, or avoiding tasks that seem too overwhelming. Someone with a flight response might have the desire to change jobs constantly, relocate constantly, or become reclusive in order to avoid perceived dangers.
The freeze response occurs when the nervous system perceives a threat as too overwhelming to fight or flee. Rather than taking action, individuals shut down, feeling numb, disconnected, or paralyzed by fear.
Unlike fight or flight, which involve heightened activation, freeze mode slows down physiological functions. A person experiencing freeze mode may feel physically unable to move, struggle to make decisions, or find themselves dissociating from their emotions. This can manifest in situations such as public speaking anxiety, where someone might "blank out" or feel stuck in the moment.
When faced with a stressor, the autonomic nervous system (ANS) activates, triggering physiological changes, including:
For those experiencing the freeze response, the body undergoes a different reaction, often reducing heart rate and causing physical immobility rather than heightened activation.
While the stress response is necessary for survival, frequent activation due to daily stressors can take a toll on health. Recognizing your default response—whether fight, flight, or freeze—can help in developing effective coping mechanisms.
If possible, changing your environment can help signal to your brain that the threat has passed. Stepping outside for fresh air, finding a quiet place, or distancing yourself from overwhelming stimuli can help regulate emotions.
Deep, slow breathing can be used to counteract the stress response by engaging the parasympathetic nervous system, which promotes relaxation. Techniques such as diaphragmatic breathing or the 4-7-8 method (inhale for four seconds, hold for seven, exhale for eight) can be particularly effective in calming the body.
This helps release pent-up energy and aids in the endorphin cascade, natural boosters for our mood.
Relieving oneself from stress can come in many ways, but sharing it with trusted friends, a family member, or a good therapist will sure give that psychological boost of hope. Social support is an especially effective way of cushioning people against the stressors that they are subjected to in chronic forms.
While occasional stress is normal, chronic activation of the fight, flight, or freeze response can indicate underlying mental health concerns, such as anxiety disorders or post-traumatic stress disorder (PTSD). If stress is affecting daily life—leading to sleep disturbances, difficulty concentrating, or persistent feelings of fear—it may be time to consult a mental health professional.
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India has approximately 101 million people living with diabetes, one of the largest such populations in the world. Blood sugar levels, HbA1c targets, and medication compliance tend to dominate the clinical conversation around the condition. What receives considerably less attention, from both doctors and patients, is what diabetes does to the feet, and what the consequences of that neglect look like over time.
Diabetic foot ulcers develop when nerve damage caused by prolonged high blood sugar, referred to as diabetic neuropathy, reduces sensation in the feet. A small cut, blister, or pressure sore that a person without neuropathy would notice and address goes unfelt. In the absence of pain as a warning signal, the injury progresses. Infection sets in. By the time the patient presents for medical attention, the wound has often reached a stage where conservative management is no longer sufficient.
The clinical outcomes associated with delayed presentation are sobering. A 2024 study published in Diabetes and Metabolic Syndrome, drawing on real-world data from a tertiary care facility in India, found that amputation was required in 43.4 percent of diabetic foot ulcer patients. Ten-year mortality among those who underwent amputation reached 30.9 percent, compared to 24.5 percent among those who achieved primary healing.
A 2025 cross-sectional study published in Cureus found a significant disparity in mortality rates between individuals with diabetic foot ulcers and those with diabetes alone, at 231 deaths per 1,000 person-years compared to 182. Globally, 18.6 million individuals develop diabetic foot ulcers annually.
The gap between the clinical evidence on diabetic foot complications and the attention the condition receives in routine diabetes management is where the preventable harm accumulates. Most patients presenting with advanced diabetic foot disease describe a history of minor symptoms that were attributed to something else, ignored, or left unaddressed because they were painless.
Regular foot inspection, appropriate footwear, avoidance of barefoot walking, and early medical review of even minor foot injuries are the practices that interrupt this progression before it reaches the point of irreversibility. Dedicated foot care clinics are built around exactly this philosophy, bringing together the multidisciplinary expertise needed to catch complications early and treat them before the window for limb salvage closes.
Eastern India carries a significant share of this burden, with patients across West Bengal, Bihar, Odisha, Jharkhand, and the Northeast frequently facing limited access to the multidisciplinary care that diabetic foot management requires. Diabetologists, vascular specialists, wound care experts, reconstructive surgeons, and rehabilitation teams working in coordination produce outcomes that sequential, single-specialty care cannot consistently achieve. Where such integrated care is available and accessed early, limb salvage rates improve, and amputations are reduced.
The Ministry of Health and Family Welfare’s recent advisory on diabetic foot care reinforces that foot health in diabetes management warrants systematic attention, not as an afterthought to glycemic control, but alongside it.
(Dr. Anupam Golash, Consultant - Plastic Reconstructive Surgery, CK Birla Hospitals, CMRI)
Credit: Washington University
A small implanted device that stimulates the vagus nerve may offer substantial and lasting relief for people with severe treatment-resistant depression, according to a large multicenter clinical trial.
The findings, published in the International Journal of Neuropsychopharmacology, showed that improvements in depressive symptoms, quality of life, and daily functioning were sustained for at least two years in most patients who responded to treatment.
Notably, more than 20% of treated participants (39 patients) were in remission after two years, meaning their depressive symptoms had improved enough for them to function normally in daily life.
"We were shocked that one in five patients was effectively without depressive symptoms at the end of two years," said lead author Charles Conway, professor of psychiatry and director of Washington University's Treatment Resistant Mood Disorders Center.
Earlier this week, Republican Tom Kean Jr. revealed that he had been diagnosed with depression, explaining his absence from public life for more than 100 days.
He is far from alone. About 20% of U.S. adults experience major depression during their lifetime. While most people improve after antidepressants or psychotherapy, up to one-third develop treatment-resistant depression, in which standard treatments fail to provide adequate relief.
The RECOVER trial, led by researchers at Washington University School of Medicine in St. Louis, enrolled nearly 500 patients across 84 sites in the US. On average, participants had:
"We believe the sample in this trial represents the sickest treatment-resistant depressed patient sample ever studied in a clinical trial," Conway said.
"There is a dire need to find effective treatments for these patients, who often have no other options. With this kind of chronic, disabling illness, even a partial response to treatment is life-altering, and with vagus nerve stimulation, we're seeing that benefit is lasting," he added.
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The VNS Therapy System, manufactured by LivaNova USA, Inc., involves implanting a small device beneath the skin of the chest. The device delivers carefully calibrated electrical pulses to the left vagus nerve, which serves as a major communication pathway between the brain and internal organs.
Although every participant received an implant, only half had their devices activated during the first year, allowing researchers to compare outcomes.
The latest analysis focused on 214 patients whose devices were activated from the beginning of the study.
Among them:
Conway noted that even a 30% improvement can dramatically change the lives of patients with severe depression, who often struggle to carry out basic daily activities and face a higher risk of hospitalization or early death.
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The study also found that recovery may take longer for some people.
Nearly one-third of participants who had not responded after the first year reported meaningful improvements by the end of the second year, suggesting prolonged stimulation may continue to produce benefits.
Researchers also observed consistently low relapse rates among patients who improved, particularly among those with the strongest responses.
Credit: Instagram
In the last few years, biohacker and longevity entrepreneur Bryan Johnson has become famous for maintaining a picture-perfect health in order to defy the norms of aging.
But this week, Johnson shared a shocking health update with his followers. He said that he has been diagnosed with Autoimmune Gastritis (AIG), a chronic autoimmune disease in which the immune system attacks the stomach lining. He said, “My stomach is eating itself.”
Despite years of optimizing his body, Bryan’s Johnson Autoimmune Gastritis diagnosis shocked the internet. While his strict routines, meticulous diet, and million-dollar anti-ageing protocol continue to inspire millions, they also receive equal amounts of skepticism and criticism.
Johnson recently revealed that he had struggled with persistently low iron stores for nearly 11 years, despite taking supplements.
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He said that a detailed evaluation confirmed Autoimmune Gastritis, an illness that damages the acid-producing cells of the stomach. The condition can impair absorption of iron and vitamin B12 and may increase the long-term risk of gastric cancer.
He also disclosed that he has autoimmune thyroid disease, suggesting that multiple autoimmune conditions may be interconnected in his case.
Amid his diagnosis, Johnson's journey raises a practical question: Which of his longevity habits are genuinely backed by science and worth adopting, and which remains experimental?
Among all longevity interventions, sleep has the strongest scientific backing. Johnson consistently aims for a regular sleep schedule and treats sleep as a primary health priority. Unlike expensive biohacks, sleeping 7 to 9 hours consistently benefits almost everyone.
Research has linked quality sleep with:
Johnson follows a predominantly plant-based diet rich in vegetables, legumes, nuts, seeds, and healthy fats.
While optimal health is not connected with veganism, evidence supports that diets including vegetables, fruits, whole grains, beans, and nuts are associated with lower risks of heart disease, diabetes, and several cancers.
Johnson combines strength training, cardiovascular exercises, mobility exercises, and walking throughout the day to stay healthy and fit.
Research, too, recommends at least 150 minutes of moderate physical activity per week to enhance longevity.
One of Johnson's greatest takeaways from his blueprint is tracking basic health markers. His long-standing low ferritin eventually prompted further investigation that disclosed his autoimmune gastritis.
It reminds us that routine health check-ups often identify silent diseases before symptoms appear. For most people, daily monitoring should include:
Bryan avoids alcohol and tobacco completely. Research consistently suggests that avoiding smoking and limiting alcohol significantly reduce risks of cancer, liver disease, heart disease, stroke and other chronic lifestyle disorders.
Many of these approaches have not been proven to extend lifespan in humans, and experts caution against assuming that more testing or consuming supplements automatically leads to better health.
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