X-Message-Number: 9013 Date: Fri, 16 Jan 1998 11:03:45 -0800 (PST) From: John K Clark <> Subject: Another Clock Found -----BEGIN PGP SIGNED MESSAGE----- I don't know if it has anything to do with aging but in today's (Jan 16) issue of Science, the same one that has the stuff about telomerase and immortal human cells, there is another interesting article. Scott Campbell and Patricia Murphy found another biological clock, it works at a much higher level than the cell and is a part of the brain called the suprachiasmatic nucleus. This clock is responsible for our sleep patterns among other things, when it gets out of whack we get jet lag and winter depression. Campbell and Murphy found a way to reset this clock with light, but the astonishing thing is that the light need not be applied to the eyes, anywhere on the skin will do, the back of the knee for example. There must be a signal but how the brain knows that light is being applied to the back of the knee is a mystery. The authors say the procedure is harmless and easy to do and should soon be in common use on airliners. Any potential for more profound applications remains to be seen. John K Clark -----BEGIN PGP SIGNATURE----- Version: 2.6.i iQCzAgUBNL+em303wfSpid95AQFCzgTwyLWrFQ4Ir+I8ncs4zik+80xd/EYqdG7/ V2YzlliwKKusfU4/zCZlyLKKf2OeSfQRV1W/t419whdwdzlcIqyG+zZbyi2r10gC B/nNp3s60a9oFMugT6xncPUoxlY2BsISCDKSIbuZRaAwNkqoIbM4rDlC7F1BboiX lWXFgMTJGMAPdfo4DbNdIY5zWuVzstIFxZ5zLb8ivHaNKXG3kqA=GM3X -----END PGP SIGNATURE----- Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=9013