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.

Heart diseases are viewed as a universal health concern, and advancements in cardiology have hugely improved diagnosis and treatment outcomes around the world. At the same time, emerging research is shedding more light on how cardiovascular disease affects women.

In India, this perspective is especially important. Of the more than 10 million deaths recorded annually in the country, nearly two million are attributed to diseases of the circulatory system, with women accounting for about 40% of these cases. Significantly, more than half of the nearly 800,000 cardiovascular deaths among Indian women each year occur prematurely, underscoring the importance of greater awareness, early detection, and timely medical care.

How Cardiac Research Has Evolved

It is evident that modern cardiology has been shaped by the findings from large, well-characterized populations of patients. The frameworks that have been established from such findings are the ones that guide the approaches that are currently used in the diagnosis and treatment of various forms of heart disease.

Such frameworks have been instrumental in the advancement of the management of various forms of cardiovascular diseases worldwide. As the research expands to include larger populations, there is an increased understanding that the manifestation of cardiovascular diseases differs from one group to another, particularly in females.

Recognizing Differences In Symptoms

This growing awareness is particularly useful in recognizing symptoms. Although women, like men, may experience chest pain as a symptom of a heart attack, there are other, less common symptoms that women may also experience.

These include fatigue, shortness of breath, nausea, dizziness, as well as neck, jaw, or back discomfort. The awareness of these symptoms will allow women to seek treatment sooner, as well as help healthcare providers better understand their symptoms.

The Role of Life Stages in Women’s Heart Health

Women’s heart health is influenced by various life stages and the hormonal changes that accompany them. For instance, after menopause, estrogen levels decline, and since this hormone offers some protective benefits for the heart, the risk of developing heart disease may gradually rise.

Certain pregnancy-related conditions, including gestational diabetes, preeclampsia, and high blood pressure during pregnancy, may also indicate a greater likelihood of cardiovascular disease later in life. Recognising these factors allows doctors to monitor heart health more closely and recommend preventive measures that support long-term wellbeing.

Strengthening Prevention And Early Detection

Prevention continues to be one of the most effective strategies for reducing heart disease. Regular health check-ups, along with monitoring blood pressure, cholesterol, and blood sugar, are essential for lowering cardiovascular risk. Adopting healthy lifestyle habits further supports long-term heart health. Awareness is equally important.

Symptoms such as fatigue or breathlessness are not always immediately linked to heart disease, particularly among women. Raising awareness about heart health can help people recognize early warning signs sooner and seek timely care.

Moving Toward More Inclusive Cardiac Care

Encouragingly, the field of cardiology is constantly evolving with the help of emerging research that is further enlightening us about the health of the heart in both men and women. With more women being included in research and better developments in diagnostic procedures, healthcare professionals are refining their strategies to deal with heart health.

Thus, by adopting the best strategies and emerging research about the health of women’s hearts, awareness and early intervention are the keys to better outcomes and reduced risks among women in India.

Physical activity is a known factor for better physical and mental well-being. However, imagine severe heat forcing you to remain indoors and not being able to just walk around your neighborhood.

The new study published in the journal The Lancet Global Health predicts that by 2050, the rising temperatures are likely to stop people from being active.

It showed that lack of physical activity, especially for people unable to access gyms, will lead to an estimated 700,000 additional premature deaths.

It is also projected to cause $2.59 billion in annual productivity losses.

“Rising temperatures are projected to increase the prevalence of physical inactivity, translating into additional premature deaths and productivity losses, especially in tropical regions,” said a team of Latin American researchers, led by Pontifical Catholic University of Argentina.

The latest report comes amid climate scientists from the UN Intergovernmental Panel on Climate Change warning of a warmer climate -- between 2.7 and 3.1 degrees Celsius by 2100.

In addition, physical inactivity is already a major global health problem, with about one in three adults failing to meet World Health Organization guidelines for weekly exercise.

Deaths Due To Climate Change

The study models how rising temperatures may affect physical activity globally up to the year 2050 based on an analysis of data from 156 countries between 2000 and 2022.

It suggests that by 2050, an average temperature above 27.8°C per month would increase physical inactivity by

• 1.5 percentage points globally
• 1.85 percentage points in low- and middle-income countries
• No clear impact in high-income countries

“This translates to a predicted 0.47–0.70 million additional premature deaths annually and $2.40–3.68 billion in productivity losses,” the researchers said.

The biggest increase in inactivity will be in hotter regions such as

• Central America,
• the Caribbean,
• Eastern Sub-Saharan Africa,
• Equatorial Southeast Asia

Heat can discourage the most common exercise regimen – walks, lead author Christian Garcia-Witulski, Professor at the Pontifical Catholic University, was quoted as saying to The Washington Post.

“The real-world picture is usually not that people suddenly stop moving altogether. It is that heat that gradually erodes the safe, comfortable, and practical opportunities people have to stay active in everyday life,” Garcia-Witulski said.

Physical Inactivity - A Silent Global Crisis

Regular physical activity promotes both mental and physical health in people of all ages. The WHO advises at least 150 minutes of moderate or 75 minutes of vigorous exercise weekly, alongside regular muscle-strengthening activities.

As per the Global Status Report on Physical Activity 2022, more than 80 percent of adolescents and 27 percent of adults do not meet the WHO’s recommended levels of physical activity.

The UN health body also aims to achieve the global target of a 15 percent relative reduction in the prevalence of physical inactivity by 2030.

The WHO recommends that countries increase levels of physical activitywithin their populations by developing and implementing dedicated comprehensive national policies to ensure safer roads for cycling and walking, accessible opportunities for active recreation where people live, work, and play, and promoting physical activity.

The Lancet researchers called for

• action to protect the public from rising heat,
• design cooler cities,
• provide affordable air-conditioned places to exercise,
• clear advice on how to stay safe in extreme heat,
• reduce greenhouse gas emissions.

Meningitis outbreak has led to authorities in the UK to urge students to get vaccines and antibiotics. Health and Me also reported on the menB vaccine that students 5,000 students in Kent University will be receiving. One of the common symptoms are rashes, however, how does one know if it is a meningitis rash?

How Do You Recognize Meningitis Rash?

As per NHS UK, the rash appears as small, red pinpricks that could turn into red or purple blotches. This rash also does not always appear, this could be a sign of blood poisoning that is caused by meningitis.

The red dots also do not fade when you press the side of a clear glass firmly against the skin. NHS UK notes that anyone with dark skin must check for paler areas, like palms of hands or soles of feet. One much also look at the roof of the mouth or inside of the eyelids.

NHS UK notes that one must call 999, if they find such a rash.

Meningitis Outbreak UK: What Is Happening Now?

A meningitis outbreak in Kent University is now treated as a national incident, after two people have died, one of them being the student of the university. Students have been urged to get vaccines and take antibiotics as health officials are dealing with the "unprecedented" and "explosive" outbreak.

As per the UK Health Security Agency (UKHSA), 15 cases have been reported and all of them have lead to hospital admission. Cases are also expected to rise due to the incubation period of infection to when the symptoms start to appear. The incubation period is from two to 14 days.

Read: Meningitis Outbreak From Kent University Is Now A National Incident, Parents Fighting For Jabs Amid Low Stock

As per experts, many of whom are affected had attended Club Chemistry in Cantebury between 5 to 7 March. UKHSA chief executive Susan Hopkins said the outbreak "looks like a super-spreader" event with "ongoing spread" through universities' halls of residence. She added: "There will have been some parties particularly around this, so there will have been lots of social mixing. I can't yet say where the initial infection came from, how it's got into this cohort, and why it's created such an explosive amount of infections."

She further said that in her 35 years working in medicine, healthcare, and hospitals, "This is the most cases I've ever seen in a single weekend with this type of infection". She added: "It is the explosive nature that is unprecedented here - the number of cases in such a short space of time." She also remarked that this was the "quickest-growing outbreak" she has ever seen in her career.

Who Should Get MenB Vaccine?

As per the University of Oxford, MenB vaccine is given to babies at 8 weeks, 16 weeks, and one year of age.

General Practitioner surgery or clinic also send an appointment for babies to have their MenB vaccination along with their other routine vaccinations.

Read: Meningitis Outbreak: What Is MenB Vaccine?

Additional doses of the vaccine are recommended for people with some long-term health conditions who are at greater risk of more severe meningococcal disease. This includes people with:

• asplenia or splenic dysfunction (a spleen that is missing or does not work properly)
• sickle cell anaemia
• coeliac disease
• complement disorders (the complement system is an important part of the immune system, and disorders of this system can increase a person’s risk to some diseases.)