Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site cepu.UUCP Path: utzoo!watmath!clyde!cbosgd!ihnp4!zehntel!tektronix!hplabs!sdcrdcf!trwrba!cepu!scw From: scw@cepu.UUCP (Stephen C. Woods) Newsgroups: net.cooks,net.flame Subject: Re: Re: Truth in Advertising? Message-ID: <415@cepu.UUCP> Date: Mon, 26-Nov-84 15:59:42 EST Article-I.D.: cepu.415 Posted: Mon Nov 26 15:59:42 1984 Date-Received: Thu, 29-Nov-84 05:32:43 EST References: <2559@dartvax.UUCP> <642@watdcsu.UUCP> <1245@utah-gr.UUCP> <2804@ucbcad.UUCP> Reply-To: scw@cepu.UUCP (Stephen C. Woods) Organization: VA Wadsworth Med. Center; LA CA Lines: 14 Xref: sdcrdcf net.cooks:1129 net.flame:3467 Summary: In article <2804@ucbcad.UUCP> faustus@ucbcad.UUCP writes: >What I've always wondered is why the closer to the equator people live, the >darker their skin tends to be. It seems that in the interests of maintainting >a reasonable body temperature, it should be just the opposite. Actually it's to help regulate the amount of vitamin D produced (the human body produces vitamin D with the help of sunlight). Peoples whose diet includes large amounts of vitamin D (Eskimos, Lapps, and some Northern Canadian Indian tribes) also have relativly large amounts of menalin in their skins in spite of living at high latitudes. -- Stephen C. Woods (VA Wadsworth Med Ctr./UCLA Dept. of Neurology) uucp: { {ihnp4, uiucdcs}!bradley, hao, trwrb}!cepu!scw ARPA: cepu!scw@ucla-cs location: N 34 3' 9.1" W 118 27' 4.3"