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Allergic Reactions02:06

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Asthma-I: Introduction01:29

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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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Global Climate Change01:50

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Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
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Asthma: Pathogenesis and Management01:20

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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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What is Climate?01:16

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Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
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Related Experiment Video

Updated: Aug 23, 2025

A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
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Climate change and allergic diseases: An overview.

A B Singh1, Pawan Kumar1

  • 1CSIR-Institute of Genomics and Integrative Biology, Delhi University Campus, Delhi, India.

Frontiers in Allergy
|October 31, 2022
PubMed
Summary

Climate change is increasing pollen counts and allergy severity. This impacts human health, particularly respiratory allergies and asthma, necessitating public health planning for future challenges.

Keywords:
air Pollution and pollen morphologyclimate changenoncommunicable diseasespollen allergyrespiratory diseases

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Area of Science:

  • Environmental Science
  • Allergy and Immunology
  • Public Health

Background:

  • Climate change, driven by greenhouse gas emissions, elevates global temperatures.
  • Rising temperatures alter flowering plant physiology, affecting pollen release patterns.
  • Pollen is a major allergen linked to respiratory issues like asthma.

Purpose of the Study:

  • To review the association between climate change and allergic diseases.
  • To highlight how altered pollen seasons impact human health.
  • To inform public health strategies for future allergic disease burdens.

Main Methods:

  • Review of existing literature on climate change and pollen.
  • Analysis of bioclimatic parameters influencing pollen production.
  • Utilizing a pollen-release model with future climate projections.

Main Results:

  • Warmer temperatures are linked to increased pollen counts in certain regions.
  • Pollen seasons may become longer and more intense.
  • Altered pollen patterns can exacerbate asthma and allergic conditions.

Conclusions:

  • Climate change poses a significant threat to human health via increased allergic responses.
  • Public health agencies must prepare for a growing burden of climate-related allergies.
  • Proactive strategies are essential to mitigate future health challenges from climate change.