Abstract

Overview

Static magnetic fields (SMFs) have been claimed to affect various biological and physiological processes. This study reviews the scientific evidence regarding SMFs' impacts on blood flow.

Methodology

The approach involved searching three major scientific databases for peer-reviewed articles exploring the effects of SMFs on blood flow in humans and animals. Initially, 1,954 articles were screened, narrowing down to 23 relevant studies.

Findings

• In human studies, no increase in blood flow was observed, with one study showing a decrease.
• Animal studies presented mixed results: one showed a transient increase post-exposure, four showed decreased blood flow, and four reported no significant changes compared to controls. Other studies indicated an increase, though these results were controversial and possibly methodologically flawed.

Conclusion

The claims that SMFs enhance blood circulation are not substantiated by human data and are poorly supported by animal data as well. However, limitations such as the small sample sizes, short duration of SMF application, and health status of the participants might influence the outcomes. Despite these considerations, no reviewed study in humans demonstrated a significant increase in blood circulation due to SMFs, suggesting that their clinical use for improving circulation lacks experimental evidence.