The COVID-19 pandemic may be over, but our immune systems are still feeling the impact. After years of battling constant viral threats, from COVID-19 to seasonal flu and other infections, our body’s defense system is exhausted. Many people continue to experience lingering inflammation, frequent illnesses, and slower recovery times. This extended state of immune stress has compromised us further to chronic illness, including autoimmune diseases and even neurodegenerative diseases such as Parkinson's. So why is our immune system still in trouble? And how do we give it its power back? Understanding immune exhaustion is the beginning of rebuilding our body's natural immunity.

A weakened immune system makes people more susceptible to disease, mental illnesses, and even sleep disorders. Now, new research indicates that immune system depletion may play an important role in the onset of Parkinson's disease, a degenerative neurologic disorder that compromises movement and cognition.

Role of Inflammation in Parkinson's Disease

Dysfunctional immune response is a leading cause of long-standing inflammation within the body, that has been found to contribute towards a multitude of conditions, including cardiovascular conditions, diabetes, depression, and neurodegenerative diseases such as Alzheimer's.

As people age, their immune system naturally becomes less effective. This deterioration, referred to as immune exhaustion, may be a key contributor to the onset and progression of Parkinson’s disease. Rebecca Wallings, a Parkinson’s Foundation Launch Award grant recipient and senior postdoctoral fellow at the University of Florida, believes that an accumulation of exhausted immune cells could be driving neurodegeneration in Parkinson’s patients.

How a Tired Immune System Might Affect Parkinson's?

Parkinson's disease is most commonly linked with the degeneration and loss of dopaminergic neurons—motor nerve cells that produce dopamine, an essential neurotransmitter for movement. While researchers have long suspected inflammation is involved in this neurodegeneration, the mechanisms are not yet well understood.

Wallings' study is on immune cell exhaustion, a process by which aging immune cells fail to control immune responses effectively. Her research indicates that instead of dampening inflammation in Parkinson's patients, attempts should be made to rejuvenate the immune system to regain its functionality.

Energy Deficiency in Immune Cells

One of the major findings of Wallings' work is the function of mitochondrial impairment in immune cell exhaustion. Mitochondria are commonly called the powerhouses of cells, as they are vital for generating energy. As mitochondria age and become inefficient, immune cells fail to function well, potentially accelerating neurodegeneration in Parkinson's disease.

Wallings has found that mutations in the LRRK2 gene, a recognized genetic risk factor for Parkinson's disease, are linked with defective mitochondrial function and immune cell exhaustion. Her current work includes testing various therapeutic approaches to restore mitochondrial function in immune cells with the potential to enhance the immune system and potentially prevent or treat Parkinson's disease.

Will Rejuvenating the Immune System Help in Treatment?

For decades, the standard practice in treating Parkinson's has been to suppress brain inflammation. Yet Wallings' work indicates that instead of slowing down immune responses, restoring the immune system could be a more successful strategy. By addressing mitochondrial impairment and immune resilience, researchers can potentially reverse or slow down Parkinson's disease.

Wallings is now looking into how to rejuvenate immune cells by fixing mitochondria. She studies immune cells from patients with Parkinson's as well as from healthy subjects and performs experiments on animal models to determine if rejuvenation of the immune system could result in improved disease outcomes.

Lifestyle Factors That May Affect Parkinson's Risk

While there is no cure for Parkinson's disease, some lifestyle adjustments may decrease the chances of developing the illness. Since neurodegenerative diseases are associated with chronic inflammation and immune dysfunction, developing habits that enhance immune function might prove helpful.

Diet: There is evidence to suggest that eating in accordance with the Mediterranean or MIND diets, both high in antioxidants, healthy fats, and anti-inflammatory foods, can encourage brain wellness and reduce Parkinson's risk.

Avoiding Dangerous Substances: Restricting alcohol and nicotine use can maintain a robust immune system and suppress inflammation.

Reducing Stress: Chronic stress weakens immune function, so methods such as meditation, exercise, and sufficient sleep can lead to improved overall well-being.

Systematic Lupus Erythematosus (SLE), also known as Lupus, is a multisystem autoimmune disease in which one's immune system attacks the body. It is most common in women of reproductive age; however, in rare cases, it can present in men and patients of any age.

Lupus Symptoms: More Than Just Joint Pain

Symptoms for SLE can range from unexplained fever for days to months, to oral ulcers, malar rash, photosensitivity (after exposure to sun), hair loss, headache, stroke, seizure, abnormal behavior (psychiatry lupus). A large group of patients experiences joint swelling, pain, and fatigue. If the kidneys are affected in Lupus patients, they can pass blood with their urine.

Their urine output also decreases; their legs swell, and there is swelling around the eyes. Involvement of the heart, brain, and pancreas is also not uncommon. Lupus is one of the causes of multiple unexplained pregnancy losses, especially in the second trimester, but with proper treatment and observation, many patients do well and have an uneventful pregnancy and childbirth.

Common Myths About Lupus

Some very prominent myths about SLE need to be debunked. Many think SLE is contagious and that only women can get it, when in reality, neither is true. Being an autoimmune disease means it cannot spread by contact, and it impacts both men and women, although the incidence rate of SLE is higher for women. Many also believe in the common misconception that it affects only joints, when in reality it is a multisystem disease that can affect the kidneys, heart, brain, skin, and lungs.

There is a common myth that pregnancy is impossible or unsafe for women with Lupus; however, many women with Lupus can conceive and experience safe and healthy full-term pregnancies under the right medical guidance. Kidney biopsy, which is a required test for treating Lupus, is often deemed unsafe, but it is a safe test and is required to decide the stage of the disease and treatment.

Lupus: Warning Signs

Some symptoms that can be a cause of alarm in SLE are rapid rising serum creatinine, new onset seizure or psychosis, sudden onset shortness of breath associated with chest pain, blood in cough with low oxygen saturation, acute confusional state with fever, vision changes, severe abdominal pain, unexplained severe anemia, severe thrombocytopenia (platelet count < 20,000).

Managing Lupus

For accurate diagnosis and treatment, one needs a rheumatologist's consultation. Rheumatologists will decide the plan of treatment to manage symptoms, reduce inflammation, prevent flares of the disease, and minimize organ damage. Lifestyle measures like avoiding Sun exposure, quitting smoking, lowering stress, and engaging in some low-impact physical activities help patients to minimize the disease burden.

There is very little awareness about Lupus in society, and due to varied presentations and symptoms, patients often consult with multiple doctors of different specialties before consulting with rheumatologists. We need to push for more awareness in society about less talked-about ailments like Lupus, which needs efficient intervention and management, as it is a lifelong condition. Talking about it also helps reduce stigma and bust myths around it. Late diagnosis and delay in treatment can cause significant morbidity, disease progression, and mortality. With early diagnosis and optimal treatment.

Holistic care is possible, which goes a long way in helping individuals manage autoimmune conditions like Lupus

(By Dr Niharika Gill, Rheumatologist, Lilavati Hospital and Research Center, Mumbai)

Prostate cancer presents a troubling paradox. It is among the most treatable cancers when detected early, with survival rates exceeding 99% at five years. Yet it continues to be a major cause of cancer-related deaths among men worldwide.

The challenge is not always the aggressiveness of the disease; it is the fact that prostate cancer often develops quietly, with symptoms that are easy to overlook or dismiss.

When Cancer Doesn't Make a Sound?

The prostate is located deep within the pelvis, beneath the bladder and surrounding the urethra. In its early stages, prostate cancer typically causes little to no discomfort. Small tumors rarely affect nearby nerves or tissues, allowing the disease to progress unnoticed.

Even when symptoms do appear, they are often mistaken for natural signs of ageing. Changes such as a weaker urine stream, increased frequency of urination, urgency, or waking up several times at night are commonly associated with benign prostate enlargement. This condition affects many men as they grow older. As a result, warning signs are frequently ignored or attributed to age-related changes rather than investigated further.

Unfortunately, more alarming symptoms, including blood in the urine or semen, persistent bone pain, unexplained weight loss, or difficulty passing urine, often emerge only when the disease has advanced beyond the prostate.

Why Men Delay Seeking Help

Biology is only part of the story. Social and psychological factors play an equally important role in delayed diagnosis.

Many men are conditioned to endure discomfort rather than seek medical attention. Persistent messages around toughness and self-reliance can discourage conversations about health concerns, particularly when symptoms involve urinary or sexual function.

Fear also contributes to postponement. Some men worry about receiving a cancer diagnosis, while others are concerned about potential treatment side effects such as urinary incontinence or erectile dysfunction. For many, avoiding the test feels easier than confronting the possibility of bad news.

A lack of awareness further compounds the problem. Unlike heart health or diabetes, prostate health is rarely discussed openly. Many men are unfamiliar with the prostate gland, its role in the body, or the importance of prostate-specific antigen (PSA) testing.

The Role of Stigma and Social Barriers

Symptoms linked to urinary or sexual health often carry an element of embarrassment, making men less likely to discuss them with friends, family members, or healthcare professionals.

Additionally, many men prioritize work and family responsibilities over their own health. Preventive screening may be viewed as unnecessary, especially when symptoms seem minor or absent. This tendency can delay diagnosis until the disease reaches a more advanced stage.

Health disparities also play a role. Certain populations face higher risks of developing and dying from prostate cancer, yet often experience lower rates of screening and healthcare access, highlighting the need for more targeted awareness efforts.

Challenges Within the Healthcare System

Unlike some other cancers, prostate cancer screening recommendations are not universally standardized. Decisions around PSA testing are often based on age, risk factors, and individual discussions between patients and healthcare providers.

Because symptoms frequently overlap with benign conditions such as urinary tract infections or prostate enlargement, prostate cancer may not always be suspected immediately. Furthermore, many men do not attend regular health check-ups, reducing opportunities for early detection and informed conversations about risk.

Who Should Be Particularly Vigilant?

While all men should be aware of prostate health, certain groups face a higher risk of developing the disease:

• Men over the age of 50
• Individuals with a father, brother, or close relative diagnosed with prostate cancer
• Men carrying inherited genetic mutations such as BRCA2
• Those with obesity, smoking habits, or diets high in processed foods and saturated fats

Breaking the Silence

Improving outcomes starts with changing the conversation around prostate health. Rather than viewing screening as a response to illness, it should be considered part of routine preventive healthcare, similar to monitoring blood pressure, cholesterol, or blood sugar levels. Men should feel comfortable discussing urinary changes, however minor they may seem, with their healthcare providers.

Public awareness campaigns, workplace screening initiatives, and community outreach programs can play a vital role in normalizing conversations around prostate health. Equally important are personal stories from survivors and public figures, which can encourage others to seek timely medical advice.

The Difference Early Detection Makes

When prostate cancer is identified at an early stage, treatment options are often less invasive and highly effective, ranging from active surveillance to curative surgery or radiation therapy. Survival outcomes are excellent.

In contrast, advanced prostate cancer may require long-term hormone therapy, chemotherapy, and ongoing management of symptoms that significantly affect quality of life. The burden extends beyond health, impacting emotional well-being, family life, and financial stability.

A Message Every Man Should Hear

Prostate cancer often develops without obvious warning signs, making awareness and proactive screening essential. The goal is not to create fear, but to empower men to take charge of their health before symptoms become impossible to ignore.

When it comes to prostate cancer, the conversation should begin long before the disease announces itself.

Not long ago, heatstroke was something most people associated with spending hours outdoors in scorching heat. That picture has changed.

Heatwaves today are longer, more intense, and more frequent than they used to be. Heat-related illnesses are showing up across all age groups, and what makes heatstroke particularly dangerous is how quietly it can creep up. The body usually sends warning signals well before things get serious, but those signals get mistaken for tiredness, dehydration, or just an off day.

Catching them early can stop a medical emergency before it happens.

It Is More than Just Feeling Hot

Heatstroke happens when the body loses its ability to regulate temperature, and the core temperature starts climbing rapidly. Unlike heat exhaustion, which is uncomfortable but manageable, heatstroke is a genuine medical emergency. Left unaddressed, it can affect the brain, heart, kidneys, and other vital organs.

Most people wait for dramatic symptoms before taking it seriously. The early signs, however, are often anything but dramatic.

Warning Signs People Keep Dismissing

One of the earliest signals is feeling unusually wiped out. If someone who is normally active suddenly feels drained after doing very little, the body may be struggling to handle the heat. This often comes with dizziness, weakness, or a light-headed feeling that is hard to shake.

Persistent headaches are another sign that tends to get ignored. People blame them on poor sleep, stress, or not drinking enough water, and carry on with their day. But a headache that keeps coming back during extreme heat can mean the body is under real strain.

Other signs worth watching out for:

- Excessive thirst or a noticeably dry mouth

- Muscle cramps, especially in the legs

- Nausea or a sudden loss of appetite

- Reduced sweating even when feeling very hot

- Difficulty concentrating or feeling unexpectedly confused

On their own, each of these can seem minor. Together, they can be a sign that the body's cooling system is starting to give way.

When Things Turn Serious

As heatstroke progresses, the symptoms become harder to miss. A very high body temperature, a racing heartbeat, flushed skin, confusion, slurred speech, or out-of-character behavior are all red flags.

One of the more dangerous aspects of heatstroke is that the mental changes can be subtle enough to be mistaken for exhaustion. A person may seem disoriented, unusually irritable, or unable to think straight. Family members sometimes put it down to tiredness when it may actually mean the brain is being affected by a rapidly rising body temperature. That distinction matters.

Who Needs to Be Most Careful

Anyone can develop heatstroke, but some people carry a higher risk. Older adults, young children, outdoor workers, athletes, and people living with chronic conditions like heart disease, diabetes, or kidney disorders are particularly vulnerable. Certain medications, including diuretics and some psychiatric drugs, can also reduce the body's ability to manage temperature and stay hydrated.

Simple Steps That Make a Real Difference

Drink water throughout the day, not just when you feel thirsty. Avoid being outdoors during the hottest part of the afternoon. Wear loose, breathable clothing and get to a cool or shaded space when you can.

More than anything, pay attention to what your body is telling you. Heatstroke rarely arrives without warning. Unusual fatigue, dizziness, a persistent headache, or sudden confusion during hot weather are not things to push through and ignore.

The Bottom Line

Heatstroke is no longer an occasional summer story. As temperatures keep climbing, it is becoming a public health concern that touches more people every year.

The early warning signs are there if you know what to look for. Recognizing them and acting quickly can be the difference between recovering at home and ending up in a hospital.