Dim light at night: physiological effects and ecological consequences for infectious disease
Meredith E Kernbach1, Richard J Hall2, Nathan D Burkett-Cadena3
1Department of Global Health, University of South Florida, Tampa, FL, USA.
Integrative and Comparative Biology
|June 26, 2018
Summary
Light pollution disrupts circadian rhythms, impacting immune function and increasing disease risk. This research explores how dim light at night affects host-pathogen interactions and transmission, proposing interventions.
Area of Science:
- Environmental Science
- Chronobiology
- Epidemiology
Background:
- Light pollution is a widespread anthropogenic factor impacting wildlife and humans.
- Disruption of circadian rhythms by artificial light at night (ALAN) can cause physiological and behavioral changes.
- Existing research highlights impacts on metabolism, reproduction, and immunity, but not host-pathogen dynamics.
Purpose of the Study:
- To investigate the potential effects of dim light at night (DLAN) on disease dynamics.
- To explore how DLAN influences circadian rhythms, immune responses, and host-parasite interactions.
- To assess the risk of disease transmission and potential human spillover.
Main Methods:
- This manuscript outlines a theoretical framework.
- It synthesizes existing knowledge on light pollution, circadian disruption, and immunology.
- It proposes future research directions and potential interventions.
Main Results:
- DLAN can disrupt circadian rhythms and alter immune system regulation.
- Interrupted biorhythms may create new opportunities for host-parasite interactions and transmission.
- These disruptions could increase the risk of infectious diseases, including zoonotic spillover.
Conclusions:
- DLAN is a significant environmental factor with the potential to alter host-pathogen dynamics and disease ecology.
- Understanding these impacts is crucial for public health and wildlife conservation.
- Interventions such as alternative lighting and vector control may mitigate risks.
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