Abstract Summary Objective: This study investigates the effects of grounding on sleep quality and cortisol levels, which are indicators of stress and overall health.

Context: Grounding, also known as earthing, is believed to influence sleep quality and stress levels by modulating cortisol secretion. This study aims to provide empirical data to support this hypothesis.

Methods Used Approach: The study employs a randomized controlled trial design with participants divided into grounded and sham-grounded groups. Sleep quality was assessed using standardized questionnaires, and cortisol levels were measured through saliva samples collected at different times of the day.

Data Collection: Participants were monitored over a period of eight weeks. Sleep quality was recorded daily, and saliva samples were collected four times a day at the start and end of the study period to measure cortisol levels.

Researchers' Summary of Findings Impact on Health: The research indicates that grounding significantly improves sleep quality and normalizes cortisol levels, suggesting a reduction in stress and improvement in overall health.

Health Implications: Grounding may offer a non-invasive method to enhance sleep and reduce stress, potentially improving overall well-being and reducing the risk of stress-related health issues.

DOI: 10.1089/acm.2007.7021