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.

Inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, affects millions of people worldwide. The lifelong condition commonly begins in adolescence or early adulthood and can require repeated hospital treatment, long-term immunosuppressive medication, and, in some cases, surgery.

Despite advances in treatment, many patients cycle through multiple therapies without achieving lasting disease control, impacting their lives and costing healthcare systems millions.

Now, a team of UK researchers from the Universities of Oxford, Newcastle, and Cambridge has identified an important driver of inflammatory bowel disease (IBD).

The findings, published in the New England Journal of Medicine, suggest that inflammatory bowel disease is not a single condition but a group of biologically distinct diseases driven by different underlying mechanisms.

"Understanding what drives the inflammation provides a clear explanation for disease in this group of people and opens the door to new treatments that target the autoantibodies themselves or cells that produce those autoantibodies," said Professor Holm Uhlig, a pediatric gastroenterologist and director of the Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford.

What Did the Study Find?

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The researchers analyzed more than 4,900 patients with IBD and discovered that:

• A substantial subset of patients shows autoimmune responses to one of the guardians of the immune system, interleukin-10 (IL-10), which leads to uncontrolled inflammation.
• This damaging immune response is the mechanism for one of the strongest known genetic risk factors for IBD.

Antibodies that block interleukin-10 (IL-10), a cell-to-cell messenger that normally acts as one of the body's key controls on inflammation, effectively remove the immune system's natural "brake" on inflammation, allowing inflammatory responses to continue unchecked.

The researchers found high levels of anti-IL-10 neutralizing autoantibodies in the blood of about 3.5% of IBD patients, including those with Crohn's disease and ulcerative colitis, but not in healthy individuals. This could equate to 15,000–20,000 people with IBD in the UK carrying these autoantibodies.

The Genetic Link

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The researchers also found that the presence of these antibodies was strongly linked to carriage of a particular genetic variant known as HLA-DRB1*01:03.

The link between HLA-DRB1*01:03 and a severe form of inflammatory bowel disease was first identified by Oxford researchers 30 years ago.

The new findings show that people carrying this variant are far more likely to develop antibodies that block IL-10, helping explain how the gene contributes to disease.

What Could This Mean for Patients?

The researchers say the findings support the development of a blood test to identify this subgroup of patients, helping clinicians move quickly toward more appropriate treatment.

What Is IBD?

As per the Centers for Disease Control and Prevention (CDC), IBD refers to a group of lifelong diseases that affect your intestines. The main types of IBD are ulcerative colitis and Crohn's disease.

Ulcerative colitis affects the large intestine, while Crohn’s disease can inflame any part of the digestive tract. Both are lifelong conditions of unknown cause that trigger abdominal pain, diarrhea and other complications, with no known cure.

What Are The Symptoms Of IBD That People Usually Ignore?

• Diarrhea or changes in bowel movements
• Stomach pain
• Fatigue
• Nausea
• Weight loss

• Dehydration
• Increased risk of colon and rectal cancers
• Low red blood cell count (anemia)
• Reduced bone density
• Joint pain
• Skin changes
• Eye irritation
• Delayed or impaired growth in some children.

With modern lifestyle changes, delayed childbearing, and other factors, infertility among Indians as young as 25 has become a looming public health concern for the country. However, the issue does not stop at the present.

A recent study published by The Menopause Society in their journal Menopause found that infertility may lead to earlier menopause, raising questions about the long-term reproductive health implications of this demographic shift.

What is Menopause?

Menopause is the final stage of a woman’s reproductive lifecycle, when menstruation stops, and she can no longer get pregnant. When the ovaries stop producing estrogen and progesterone, and a woman misses her period for 12 consecutive months, she has officially reached menopause.

Although menopause is a regular part of ageing, women typically reach menopause between 45 and 55 years of age. If menopause occurs before age 45, it is considered early menopause. If it occurs before 40, it is termed premature menopause – rarer than early menopause but involves the same causes, symptoms, and health risks.

While previous studies have been conducted to find a link between infertility and both early and premature menopause, they have had mixed results and did not consider the effect of different types of infertility; this study focuses on women with a history of primary infertility, women who have never achieved pregnancy, and have difficulty conceiving.

What Did the Study Find?

For the study, researchers examined the reproductive lifecycle of nearly 700 women in the U.S. – 461 with primary infertility and 530 without infertility – who were otherwise demographically similar (age, education, smoking status, etc.). It found that the 461 women had a 25% higher likelihood of reaching natural menopause about 1.2 years earlier than the 530.

Researchers also noted that women with underlying endometriosis as a cause of their infertility reached menopause between 40 and 44 years, much sooner than the national average of the United States, i.e., 52 years.

Possible explanations include accelerated ovarian ageing, reduced ovarian reserve, or the effects of endometriosis on ovarian function. But no matter the causes, the implications for women’s long-term health are substantial.

Why Does This Matter?

All women are born with a finite, predetermined number of eggs, which are sensitive to age, environmental toxins, medications, hormonal imbalances, and lifestyle factors. When exposed to such risk factors, especially over a long period of time, the DNA inside the eggs is altered, causing permanent genetic damage and reducing the egg quality and quantity.

As a core part of the reproductive process, any damage to the eggs directly affects reproductive health and, in turn, long-term systemic health.

Infertility impacts more than the ability to conceive and go through a pregnancy; it is often a sign of underlying health conditions and potential chronic illnesses, acting as a biomarker of increased all-cause mortality. Experiencing infertility itself increases a woman’s risk of developing cardiovascular disease, metabolic disorders, gynecologic cancers, etc., but reaching menopause early on top of that puts them at further health risk, adding osteoporosis and cognitive decline to the mix, along with the emotional distress and mental health challenges.

Indian women already reach menopause earlier than women in Western countries, with the average woman experiencing menopause at 46.2 years of age. With fertility rates dropping across the country, this study highlights just how critical it is to increase fertility awareness. Early screenings and regular fertility testing can help detect risks early and enable timely intervention, not only to combat the ongoing crisis but to ensure that women live healthy, fulfilling lives without impending morbidity.

A new oral GLP-1 medication has delivered encouraging results in a Phase 2b clinical trial for people living with type 2 diabetes.

According to AstraZeneca, its experimental tablet, elecoglipron, significantly lowered blood sugar levels and helped participants lose an average of 10.5% of their body weight after 26 weeks of treatment.

The findings were presented at the 2026 American Diabetes Association Scientific Sessions in New Orleans and published in The Lancet on June 8.

Elecoglipron joins a growing wave of GLP-1 therapies being developed as pills, offering an alternative to injectable drugs such as Ozempic, Wegovy, Zepbound, and Mounjaro.

The first oral GLP-1 treatment, Rybelsus from Novo Nordisk, received FDA approval in 2019 for adults with type 2 diabetes. Since then, oral options have continued to expand. In December 2025, the FDA approved a tablet version of Wegovy for weight management, while Eli Lilly’s oral obesity treatment, Foundayo, gained approval in April.

Independent experts say AstraZeneca’s results highlight the growing potential of non-injectable GLP-1 therapies for both diabetes and obesity treatment.

“It’s encouraging to see another oral medication demonstrating the benefits of GLP-1 therapy without requiring injections,” said Dr. Pouya Shafipour, a family and obesity medicine specialist at Providence Saint John’s Health Center in California.

Dr. Marilyn Tan, an endocrinologist and professor of medicine at Stanford University, noted that the rapidly expanding GLP-1 market could soon welcome another oral treatment option if elecoglipron succeeds in Phase 3 trials and ultimately secures FDA approval.

How Does GLP-1 Drug Work?

GLP-1 is a natural hormone produced in the intestines that regulates blood sugar, appetite, and digestion. Now, every time you eat, your body produces various hormones, including GLP-1. These are called post-nutrition hormones, and they help you absorb the energy you just consumed.

GLP-1 travels to your pancreas, prompting it to produce insulin. It also travels to the hypothalamus in your brain, which gives you the feeling of being full or satiated. GLP-1 pills imitate that hormone, thereby silencing the food chatter in the brain. Interestingly, for some people, this food chatter is really quiet, and for others it is an outburst. So with GLP-1, silencing this self-talk in the brain, people tend to lose their appetite and eventually weight.

However, it is important to note that losing weight includes not just fat but muscle as well. Losing too much muscle can lead to reduced strength and a shorter life span. Notably, records show that most people who start taking them stop them at 12 weeks; therefore, it is important for some but not for others.

What Are The Side Effects?

The side effects of these pills include:

• Nausea is a frequent side effect, especially when starting or increasing the dose, and vomiting may occur along with nausea.
• Diarrhoea and abdominal discomfort also show up.
• It can reduce appetite but may also lead to unintended weight loss or reduced food intake, causing discomfort for some people.
• There are certain less common, but serious side effects, like Pancreatitis, or inflammation of the pancreas.
• This drug may also cause severe kidney issues, particularly if dehydration occurs from side effects like vomiting or diarrhoea.