Key Takeaway
Grounding improved facial blood flow regulation and reduced blood viscosity, suggesting improved circulation and cardiovascular function.
Summary
This study examined the effects of grounding on blood flow using laser speckle contrast imaging of facial blood flow and blood viscosity measurements. Participants were grounded for one hour while measurements were taken.
Results showed that grounding improved blood flow regulation and reduced blood viscosity (thickness). The authors suggest these changes could have cardiovascular benefits by reducing the risk of blood clots and improving circulation.
The immediate effects on blood properties provide some objective evidence for grounding's physiological effects, though long-term cardiovascular outcomes were not measured.
Methods
- Laser speckle contrast imaging of facial blood flow
- Blood viscosity measurements
- One hour grounding session
- Comparison to ungrounded control
Key Results
- Improved facial blood flow regulation
- Reduced blood viscosity
- Effects observed within one hour
- Suggests improved circulation
Limitations
- Small sample size
- Acute measurements only
- Facial blood flow as proxy for systemic effects
- No long-term cardiovascular outcomes