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Immediate effect of sunlight exposure through blue glass on blood pressure in hypertensive patients: a randomized controlled trial

  • Deepa Yoganathan , Maheshkumar Kuppusamy ORCID logo EMAIL logo , Edmin Christa , Saran Murugan , Vijayabharathi Elangovan , Preetha Jayakumar and Sangamithraa Rammohan
Published/Copyright: November 13, 2024

Abstract

Objective

Hypertension affects approximately 1.28 billion adults worldwide, driving the search for integrative therapeutic approaches alongside conventional treatments. While chromotherapy, particularly blue light exposure, has historical roots in traditional medicine and its specific impact on blood pressure regulation remains understudied. So, the present study aims to investigate the immediate impact of exposure to blue glass through sunlight on blood pressure in hypertensive individuals.

Methods

This randomized controlled trial was carried out with a sample of 60 hypertensive patients, who were divided into two groups: a study group that received blue glass exposure for 20 min and a control group that received exposure to colourless glass. The primary outcome measures were systolic and diastolic blood pressure, pulse rate, and oxygen saturation levels.

Results

The results of the study revealed statistically significant differences in systolic blood pressure (p=0.006) and pulse rate (p=0.005) after the intervention in the study group and no such changes were noted in the control group.

Conclusions

The findings of this study suggest that blue glass exposure has a significant impact on reducing blood pressure and pulse rate in hypertensive patients, indicating its potential use as a integrative treatment in the management of hypertension.


Corresponding author: Dr. Maheshkumar Kuppusamy, Department of Physiology and Biochemistry, Government Yoga and Naturopathy Medical College, Chennai, India, E-mail:

Acknowledgments

Authors would like to express their sincere gratitude to the Government College of Yoga and Naturopathy, Chennai.

  1. Research ethics: The study was approved by the Institutional Ethics Committee (Reference number: RES/IEC-GYNMC/2022/138)

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: The authors declare that no artificial intelligence (AI), large language models, or machine learning tools were used in the writing or preparation of this manuscript.

  5. Conflict of interests: Authors state no conflict of interest.

  6. Research funding: Nil.

  7. Data availability: The datasets generated and analyzed during the current study are available from the corresponding author upon reasonable request.

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Received: 2024-05-26
Accepted: 2024-10-17
Published Online: 2024-11-13

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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