what is 'normal photo period' . . why cycle carbs?

> -----Original Message-----
> From: Robert Wolf [SMTP:[log in to unmask]]
> Sent: Wednesday, November 08, 2000 6:00 PM
> To:   [log in to unmask]
> Subject:      [EVOLUTIONARY-FITNESS] Photo period/ Nutrient cycling
>
> I am curious if anyone else has read the book Lights OUT.  It addresses
> the
> need to live as close to the normal photo period as possible.  It also
> mentions cycling carbs to quite low levels during most of the winter.  I
> found the book great for information(thick reference section) but not well
> edited.