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.

In June, X-Men actor and former professional wrestler Tyler Mane revealed that he had been diagnosed with a "super-rare" form of breast cancer. The disease is uncommon in men, accounting for only about 1% of all breast cancer cases.

Now, as he undergoes treatment, the actor is encouraging men to pay attention to their health, have open conversations about family medical history, and never ignore unusual symptoms.

A Lump That Changed Everything

Mane said his health transformation began in 2024 after he quit drinking and focused on getting back into shape. A DEXA scan revealed he had 33 per cent body fat, prompting him to work on reducing visceral fat around his organs and chest.

As he lost weight, he noticed a lump in his breast. Initially, he did not think it was serious and had it removed. However, laboratory tests revealed it was invasive ductal carcinoma, the most common form of breast cancer.

Following the diagnosis, Mane underwent genetic testing, which found that he carries the BRCA2 gene mutation. The mutation significantly increases the risk of developing several cancers, including breast, prostate, pancreatic and, in women, ovarian cancer.

The discovery also made him realise how little he had discussed health issues with the men in his family.

'I Was Lucky Enough That My Breast Cancer Was Stage 1'

Although the cancer was caught early, doctors determined it was aggressive enough to require chemotherapy after surgery.

"I was lucky enough that my breast cancer was stage 1. Men usually don't notice the signs or don't quickly treat breast cancer. By the time it's diagnosed, it is often stage 3 or 4, metastasized throughout their bodies, and then it becomes a whole different thing," he wrote in an interview with Yahoo.

Mane explained that the tumour measured 28 millimetres and had a surgical margin of less than one millimetre, making additional treatment necessary.

"But mine was an aggressive type of breast cancer and met the benchmark for needing chemotherapy after surgery. The tumor was also 28 millimeters with a margin of less than a millimeter. That's why I now have to have chemotherapy and radiation."

He added that genomic testing showed a high risk of recurrence without treatment.

"So, it being an aggressive Oncotype, my cancer had the ability to come back in two to three years. Without chemotherapy, I would have had about a 27% chance of recurrence. With chemotherapy, that figure comes down to 6% to 8%. It's something that I'll have to monitor and watch for the rest of my life. But I would rather have to do that than the alternative, which would be letting it go longer and possibly getting to stage 4."

'Chemotherapy Is Not Fun, But It Is a Necessity'

Mane is currently undergoing four rounds of chemotherapy followed by localized radiation therapy.

"I'm being treated with four rounds of chemo, and then I have to have some localized radiation treatment to make sure the cancer is all wiped out."

While treatment has been challenging, he said it is essential.

"And let me tell you: Chemotherapy is not fun. But it is a necessity."

Describing the side effects, he said:

"They give you some really good steroids for the day before, the day of and the day after chemotherapy. But then when that wears off, it all kind of hits you. You get the metal taste in your mouth. You feel sluggish and want to sleep all the time. My beard fell out. I look like a hairless cat with a couple of tufts on my face now. But the doctors say my beard will come back, which is great. It's all just what you have to go through to make sure that the cancer gets kicked out."

Learning To Slow Down During Treatment

The actor admitted he initially underestimated the impact chemotherapy would have on his body.

"I was skeptical about doing chemotherapy at first, because I didn't know how it was going to affect my body. The first time I went into my chemotherapy treatment, I wasn't as hydrated as I needed to be and got very dehydrated during it."

He also realised he had pushed himself too hard physically in an effort to stay strong.

"I pushed myself a little too hard in a couple of my workouts because I had the attitude, 'I'm going to beat this!' But I beat myself into a corner."

Now, he is focusing on maintaining his strength by increasing his protein intake while continuing moderate exercise.

"Physically, I'm trying to keep up my protein intake to help me stay strong throughout treatment."

Despite the challenges, Mane has continued a daily workout routine that includes push-ups, squats and rebounding exercises.

"Around the time I began chemotherapy, I also started a workout challenge that I'm kind of regretting. I decided I'd do a set of pushups to failure, do some rebounding — a kind of low-impact cardio workout — and a set of squats until I can't do any more. I'm probably about a month into it, and I'm feeling great and looking great."

Speaking Out So Other Men Don't Ignore the Signs

Through his public updates and the podcast Mane AF, which he co-hosts with his wife, Mane hopes to raise awareness that breast cancer is not exclusively a women's disease. By sharing his experience, he wants more men to recognise the symptoms early, discuss their family medical history, and seek medical attention without delay.

A 27-year-old woman in US' state of Arizona suffered a cardiac arrest after using kratom, an over-the-counter supplement she purchased at a local gas station.

Amanda Goodsell, who had never taken kratom before, suffered a cardiac arrest after nearly a week of using the supplement and is now on life support, according to her family.

The mother of 3½-year-old twins tried the kratom gummies at the suggestion of her husband, Mike Goodsell, while seeking relief from persistent leg pain.

“Everybody knew what Kratom was. So I was like, well, okay, well, here, just take this. You could just buy it at the gas station. It’s not going to hurt you,” Mike Goodsell was quoted as saying to the media.

Nearly a week later, Mike found his wife unresponsive in their bed, and rushed her to the hospital, where she was placed on life support

“She like, was like red and her lips were blue, and she was foaming. So I like jumped out of bed. I grabbed her, and then (I) was trying to wake her up,” he said.

“They had to have her on a ventilator to help her breathe. And then they had to put her on a bunch of medications because her heart percentage was at 15%,” Mike added.

After spending two weeks in the hospital, Amanda Goodsell's condition began to improve. Although she has shown significant improvement, as per the doctors she will need a defibrillator and heart medication for the rest of her life.

Also read: Legionnaires' Disease Claims 5th Life In New York City: Health Officials

What Is Kratom?

Kratom is a plant-based substance derived from the Mitragyna speciosa tree, native to Southeast Asia. Traditionally used in countries such as Thailand and Malaysia for pain relief and increased energy, it has gained popularity in the US as an over-the-counter supplement.

Kratom is sold in multiple forms, including powders, capsules, teas, drinks and gummies.

Although it remains legal in many parts of the US, the Food and Drug Administration (FDA) has classified kratom as a "drug of concern" and has not approved it for any medical use.

According to the Substance Abuse and Mental Health Services Administration's National Survey on Drug Use and Health, an estimated 1.7 million Americans aged 12 and older used kratom in 2021.

The substance, sometimes referred to as "gas-station heroin," is banned in at least eight US states—Alabama, Arkansas, Connecticut, Indiana, Louisiana, Tennessee, Vermont and Wisconsin. Several other states, including Iowa and Idaho, are considering restrictions or outright bans.

Why Does The FDA Warn Against Kratom?

Read More: Hantavirus Claims 3 Lives In Venezuela: What The Rat-borne Virus Does To The Brain

According to a University of Virginia study, there were 43 hospitalizations linked solely to kratom in 2015. By 2025, that number had risen to 538. Researchers said the increase coincided with the emergence of highly concentrated synthetic products, including 7-OH.

The FDA has stated that kratom should not be used as a dietary supplement.

"Kratom is not appropriate for use as a dietary supplement. FDA has concluded from available information, including scientific data, that kratom is a new dietary ingredient for which there is inadequate information to provide reasonable assurance that such ingredient does not present a significant or unreasonable risk of illness or injury."

The agency has warned consumers not to use kratom because of the risk of serious adverse events, including liver toxicity, seizures and substance use disorder (SUD).

The FDA also notes that, in rare cases, deaths have been associated with kratom use, although these cases usually involved other drugs and the contribution of kratom remains unclear.

The agency is also aware of cases involving neonatal abstinence syndrome, in which newborns experienced withdrawal symptoms such as jitteriness, irritability and muscle stiffness following prolonged exposure to kratom during pregnancy.

When it comes to climate change, we often visualise melting glaciers, rising sea levels, raging wildfires, or record-breaking heatwaves. But scientists are increasingly warning that climate change could also be silently affecting one of the body's most vital organs: the brain.

From rising mercury levels and worsening air pollution to floods, wildfires, and hurricanes, climate-related catastrophes are exposing millions of people across the world to conditions that could increase the risk of neurological disorders.

On World Brain Day, let's look at why brain health is another reason to take climate change seriously.

Effect Of Heatwaves On Brain Health

This can lead to poor concentration, slower reflexes, memory decline, headaches, confusion, and poor decision-making.

Older adults are particularly vulnerable because the brain's ability to regulate body temperature declines with age.

People living with neurological disorders like dementia, Parkinson's disease, multiple sclerosis, or epilepsy may also find that their symptoms worsen during periods of intense heat.

Also read: Will Waterborne Diseases Rise In The Future? New Study Says Climate Change Could Be A Major Driver

Effect Of Air Pollution On Brain Health

Climate change is worsening air pollution in many parts of the world by increasing wildfire smoke, ground-level ozone, and fine particulate matter.

These tiny pollutants, especially PM2.5, are small enough to enter the bloodstream and may even reach the brain. Studies have linked long-term exposure to air pollution with:

• Faster cognitive decline
• Memory impairment
• Increased risk of dementia
• Higher risk of stroke
• Parkinson's disease
• Poor brain development in children

Scientists believe air pollution may trigger chronic inflammation and oxidative stress, both of which can damage brain cells over time.

Also read: Europe Heatwave Causes 10,000 Excess Deaths; England, Wales Record 2,700 More Fatalities

Effects Of Wildfires On Brain Health

While smoke affects the lungs, it can also impact the brain.

Wildfire smoke contains fine particles and toxic chemicals that have been associated with headaches, reduced attention, poorer cognitive performance, and increased emergency visits for neurological conditions.

People with existing neurological diseases may experience worsening symptoms during periods of heavy smoke exposure.

Also read: Dangerous Heat Dome To Grip Eastern US, Canada, Putting Over 220 Million Lives At Risk: How To Stay Safe

Extreme Weather Can Accelerate Brain Ageing

Climate change is also increasing the frequency and intensity of floods, hurricanes, droughts, and other natural disasters. Beyond physical injuries, these disasters can leave lasting effects on the brain and mental health. People affected by climate disasters often experience:

• Anxiety
• Depression
• Post-traumatic stress disorder (PTSD)
• Sleep disturbances
• Chronic stress

Children, older adults, and disaster survivors are among the groups most vulnerable to these long-term psychological effects.

How To Protect Your Brain?

While tackling climate change is a long-term strategic plan, individuals can maintain few self-care habits to reduce the risks. Experts recommend:

• Staying hydrated during heatwaves
• Avoiding outdoor activity during peak afternoon heat
• Monitoring local air quality before going outside
• Wearing a well-fitting mask during heavy wildfire smoke or severe pollution
• Keeping homes cool whenever possible