4 ms·
Or, you could sit outside on a sunny day. "the light intensities on the brain surface during OT obtained by using a commercially available system were about 2%
by hownottowrite 12y ago
Or, you could sit outside on a sunny day.
"the light intensities on the brain surface during OT obtained by using a commercially available system were about 2% for adults and 3% for neonates of those values obtained under midday sunlight on a sunny day in midsummer"
http://biomedicaloptics.spiedigitallibrary.org/article.aspx?articleid=1351970 http://biomedicaloptics.spiedigitallibrary.org/article.aspx?... [Journal of Biomedical Optics 2007]
- gwern 12y agoAs I understand it, the LLLT systems in question are usually focused on a fairly narrow range of wavelengths (this times into the postulated cytochrome mechanism: it only absorbs light energy at a few wavelengths), not smeared all over the infrared and visible and UV like sunlight.
- ehsanu1 12y agoThe article actually notes that higher power densities showed a much smaller effect. Low doses were much more effectual, which is why sitting outside on a sunny day may not work quite as well, if at all.