Abstract

Overview

The study examines how magnetic environments impact cardiovascular functions, focusing on the effects of hypomagnetic fields on zebrafish embryos.

Findings

• Low-frequency and static magnetic fields were observed to affect heart dynamics and circadian rhythms in both humans and animals.
• A novel noninvasive optical method was used to investigate the cardiac functions in transparent zebrafish embryos.
• Exposure to hypomagnetic fields resulted in increased mortality rates, abnormal phenotypes, and a higher heartbeat rate in the embryos.
• Significant differences in heart rate variability and circadian pattern disruptions were noted, especially under constant illumination conditions.

Conclusion

The findings underscore the critical role of the natural magnetic environment in the early development of zebrafish. The study also discusses potential mechanisms behind the observed effects, highlighting the significance of maintaining natural geomagnetic conditions for proper embryonic health and development.