"Blood absorbs light energy from the sun," proposes Dr. Oren, whose research
is funded by a career development award from the U.S. Department of Veterans
Affairs. "The blood can then regulate our biological clocks, our physiology
and our behavior. My theory is that in people who get SAD, the blood isn't
absorbing enough light."



Great find Ramon!



I expected such thing to be revealed since I learned that the only difference
between hemin, from blood, and chlorophyll, from plants, is that chlorophyll is
bound by an atom of magnesium and hemin is bound by iron.



Petre