Different wavelengths of light penetrate the body to different depths: ultraviolet light does not penetrate deeply (which is why sunburn occurs on skin), while longer wavelengths from 800-900 nanometers penetrate deeply through the entire body and can be measured exiting the opposite side.
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Glenn JeffreyEvidence Quote
“you can get 800 900 nanometers you can measure it coming out the other side of your body”
Created: 8/11/2026, 8:02:22 AM
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