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Published on: May 08, 2025
2 minute read
By: Secondmedic Expert

The Alarming Health Effects Of Climate Change: What You Need To Know

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Climate change is no longer a distant threat. It is here, and it's affecting the health of people across the globe. From rising temperatures to extreme weather events, our changing climate is directly impacting our physical and mental well-being. Understanding the health effects of climate change is crucial to preparing ourselves and our communities for a safer, healthier future.

Rising Temperatures and Heat-Related Illnesses

One of the most immediate impacts of climate change is the rise in global temperatures. Heatwaves are becoming more frequent and intense, leading to a surge in heat-related illnesses such as heat exhaustion, heatstroke, and dehydration.

Older adults, young children, and people with pre-existing health conditions are most at risk. Cities, with their concrete landscapes and limited green spaces, trap heat more than rural areas, making urban populations especially vulnerable.

Tip: Stay hydrated, avoid going out during peak heat hours, and check on vulnerable family members during heatwaves.

Worsening Air Quality

Climate change contributes to air pollution by increasing ground-level ozone and promoting the spread of allergens. Poor air quality can lead to or worsen respiratory conditions like asthma, bronchitis, and other lung diseases.

Wildfires, which are becoming more common due to rising temperatures and dry conditions, also release harmful smoke and pollutants into the air, causing breathing difficulties and cardiovascular issues.

Tip: Monitor air quality reports, use air purifiers indoors, and wear masks when pollution levels are high.

Spread of Infectious Diseases

Warmer temperatures and increased rainfall create ideal conditions for mosquitoes, ticks, and other disease-carrying organisms. As these pests expand their range, diseases like malaria, dengue, chikungunya, and Lyme disease are appearing in new regions where they were once rare or non-existent.

Floods and stagnant water further increase the risk of waterborne diseases such as cholera, typhoid, and diarrhea, particularly in developing countries with poor sanitation.

Tip: Use mosquito repellents, wear protective clothing, and avoid stagnant water around your home.

Food and Water Insecurity

Climate change affects agriculture by altering rainfall patterns, increasing droughts, and reducing crop yields. This leads to food shortages, malnutrition, and increased food prices.

Water sources are also affected by climate change, with many regions experiencing severe droughts or floods that damage infrastructure. Lack of access to clean water contributes to the spread of disease and poor hygiene, especially in low-income areas.

Tip: Conserve water, support sustainable farming practices, and consider a more plant-based diet to reduce your carbon footprint.

Mental Health Impacts

The psychological impact of climate change is often overlooked but is just as serious. People affected by natural disasters such as floods, hurricanes, or wildfires often suffer from post-traumatic stress disorder (PTSD), anxiety, and depression.

Even those not directly affected may experience "eco-anxiety" — a chronic fear of environmental doom. Young people, in particular, report feeling overwhelmed and hopeless about the future of the planet.

Tip: Stay informed but take breaks from distressing news. Connect with support groups and mental health professionals if needed.

Vulnerable Populations Face Greater Risks

Not everyone is equally affected by the health effects of climate change. People living in poverty, marginalized communities, the elderly, children, and those with chronic illnesses face greater risks. Limited access to healthcare and resources means they are less equipped to deal with climate-related health problems.

Governments and health organizations must focus on these vulnerable groups while planning climate adaptation strategies.

Conclusion: Time to Act

The evidence is clear: climate change is a health crisis. From rising temperatures and poor air quality to the spread of diseases and mental health issues, its impact is wide-ranging and severe. But it is not too late to take action.

By making small lifestyle changes, advocating for environmental policies, and staying informed, we can protect ourselves and future generations. It is time for individuals, communities, and governments to work together to address the health effects of climate change and build a more resilient world.

Ready to learn more or take action? Discover how you can protect your health and well-being from the health effects of climate change.

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Read FAQs

A. Climate change affects health through increased heatwaves, poor air quality, the spread of infectious diseases, food and water insecurity, and mental health disorders like eco-anxiety.

A. Climate-driven pollution increases asthma, bronchitis, and other respiratory issues, especially in children and the elderly.

A. Yes. Climate-related events such as floods or wildfires can lead to PTSD, anxiety, and eco-anxiety, especially in young people.

A. Warmer and wetter climates are enabling the spread of vector-borne diseases like dengue, malaria, and chikungunya to new regions.

A. Stay hydrated, monitor air quality, eat nutritious food, avoid heat exposure, and get regular health check-ups to catch early signs of illness.

Read Blog

Monkeypox Virus Symptoms: Early Signs, Disease Progression, and When to Seek Care

Monkeypox, now commonly referred to as mpox, is a viral infection that has gained global attention due to outbreaks beyond traditionally affected regions. Understanding monkeypox virus symptoms is essential for early detection, timely isolation and prevention of further spread.

According to the World Health Organization and Indian public health authorities, awareness of symptom patterns plays a critical role in controlling outbreaks and protecting vulnerable populations.

What Is the Monkeypox Virus?

Monkeypox is caused by the monkeypox virus, a member of the Orthopoxvirus family, which also includes smallpox. While generally less severe than smallpox, monkeypox can still cause significant illness and discomfort.

The virus spreads primarily through close physical contact.

Incubation Period of Monkeypox

After exposure, symptoms typically appear within:

5 to 21 days
most commonly 6 to 13 days

Individuals may feel well during this period but can become infectious once symptoms begin.

Early Monkeypox Virus Symptoms

Fever

Fever is usually the first symptom and may be:

sudden in onset
moderate to high grade
accompanied by chills

Fever signals the start of systemic infection.

Headache and Body Aches

Patients often experience:

severe headache
muscle aches
back pain

These symptoms resemble many viral illnesses.

Fatigue and Weakness

Marked tiredness and low energy levels are common and may limit daily activities.

Swollen Lymph Nodes

Swollen lymph nodes are a distinguishing feature of monkeypox.

Common sites include:

neck
armpits
groin

This helps differentiate monkeypox from chickenpox or smallpox.

Development of Monkeypox Rash

The skin rash usually appears:

1 to 3 days after fever onset

It may begin on the face or genital area and spread to other parts of the body.

Stages of Monkeypox Rash

The rash progresses through well-defined stages:

Macules

Flat red spots on the skin.

Papules

Raised, firm bumps.

Vesicles

Fluid-filled blisters.

Pustules

Pus-filled lesions that are painful.

Scabs

Lesions crust over and eventually fall off.

Complete healing occurs once scabs detach.

Distribution of Rash

Rash commonly affects:

face
hands and feet
mouth
genital and anal areas

The number of lesions can vary widely.

Pain and Discomfort

Rash lesions may be:

painful
itchy during healing

Pain severity differs between individuals.

Other Possible Symptoms

Additional symptoms may include:

sore throat
cough
nasal congestion

These reflect upper respiratory involvement.

Duration of Illness

Monkeypox symptoms typically last:

2 to 4 weeks

Recovery occurs gradually as lesions heal.

Who Is at Higher Risk of Severe Illness?

Higher risk groups include:

children
pregnant women
individuals with weakened immunity
people with chronic illness

Early care is crucial in these groups.

Complications of Monkeypox

Though uncommon, complications may include:

secondary bacterial skin infections
dehydration
pneumonia
eye involvement

Prompt medical guidance reduces risk.

How Monkeypox Is Transmitted

Transmission occurs through:

direct skin-to-skin contact
contact with lesions or bodily fluids
respiratory droplets during close contact
contaminated clothing or bedding

Understanding transmission helps prevent spread.

When to Seek Medical Care

Seek medical evaluation if:

fever is followed by rash
lymph nodes become swollen
rash appears in genital or facial areas

Early diagnosis supports isolation and care.

Diagnosis and Testing

Diagnosis may involve:

clinical examination
laboratory testing of lesion samples

Public health authorities guide testing protocols.

Prevention and Control Measures

Preventive steps include:

avoiding close contact with infected individuals
maintaining good hand hygiene
isolating during illness
following public health guidance

Vaccination may be recommended for high-risk groups.

Role of Public Awareness

Awareness of symptoms:

enables early detection
reduces stigma
supports timely care

WHO emphasises community education in outbreak control.

Conclusion

Monkeypox virus symptoms typically begin with fever, body aches and swollen lymph nodes, followed by a characteristic rash that progresses through defined stages. While most cases are self-limiting, early recognition, medical evaluation and isolation are essential to prevent complications and reduce transmission. Staying informed and acting promptly protects both individual and public health.

References

World Health Organization (WHO) – Mpox (Monkeypox) Clinical and Public Health Guidance
Indian Council of Medical Research (ICMR) – Emerging Viral Infections Reports
National Centre for Disease Control (NCDC), India – Monkeypox Advisories
Lancet – Clinical Features and Outcomes of Mpox
NITI Aayog – Public Health Preparedness and Infectious Disease Control

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