Path: utzoo!attcan!uunet!mcsun!ukc!educ-isis!teexmmo
From: teexmmo@ioe.lon.ac.uk (Matthew Moore)
Newsgroups: sci.bio
Subject: Re: 25 hour day
Summary: leave the curtains open and wake naturally and earlier
Message-ID: <1990Jul20.084314.10482@ioe.lon.ac.uk>
Date: 20 Jul 90 08:43:14 GMT
References: <8455@ur-cc.UUCP>
Reply-To: teexmmo@ioe.lon.ac.uk (Matthew Moore)
Organization: Institute of Education University of London
Lines: 19

pjas@uhura.cc.rochester.edu (Paul Jasinski) writes:
>I've been following this thread for a while.  Would it be worthwhile to design
>a lighting system in the bedroom then which provided an effective dose of
>bright light shortly prior to the alarm time to wake up.  How long a period of
>time would this need to go on to 'reprogram' the body to wake up, and would
>it be effective if it were not used every day?  Can anyone think of any 
>adverse effects on the body?  What kind of lite would be most effective 
>(flourescent?).  
>
>well, there are my questions.  My personal feeling is that it could bring
>people like me who aren't morning people to an earlier state of mental 
>alertness in the morning...it might be worth it to create such a device.

Why not just leave the curtains open. You will find that you wake with
the day, rather than needing an alarm. 

The main snag is that the natural day and the human day are not always
in step. In Britain now, it is light at about 4:00 BST (sunrise at
5:00).