KIDS who sleep with the light on could risk leukaemia, parents wereTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。6 h7 Y2 P' ~8 u+ J" `
warned yesterday.tvb now,tvbnow,bttvb2 l4 }1 y( Z# {9 @ D+ K
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Scientists have found the body needs darkness to produce a chemical公仔箱論壇4 c5 @1 N/ x- m j4 ~
that fights cancer.tvb now,tvbnow,bttvb0 N& F5 U' j. g0 F! ?
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Even switching the light on for the toilet, staying up late, travelling( } I* | _( R% x7 K
across time zones, or the light from street lamps can stop enough
% c3 x7 C% b3 t; D. itvb now,tvbnow,bttvb melatonin being made, they say.
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The body needs the chemical to prevent damage to DNA and its absencetvb now,tvbnow,bttvb* T% a: G3 X; d" a
stops fatty acids reaching tumours and preventing them growing. Texas
! z. H+ w9 ?6 h0 b& z3 [6 R& @. P5.39.217.76University Prof Russell Reiter, who led the research, said: 'Once you
. k( n; k1 \/ y7 N5 z- N4 lgo to bed you should not even switch the light on for a minute.
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'Your brain immediately recognises the light as day and melatonin
9 g$ Y- L n8 @tvb now,tvbnow,bttvblevels drop.'
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Rates of childhood leukaemia have doubled in the past 40 years.
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About 500 youngsters under 15 are diagnosed with the disease each year and around 100 die. A conference on childhood leukaemia in London yesterday公仔箱論壇( ]& ~* W+ ]* Z- ^/ _/ t
heard that people were being subjected to more light at night thantvb now,tvbnow,bttvb4 l/ G, |1 T$ p/ R
ever..
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4 g& V* g7 R" O! QThis suppressed the production of melatonin which normally happens between 9pm and 8am.
4 l* w/ h* d9 u" ^1 r公仔箱論壇TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; V8 M, H) x# x3 w& s5 |
Past research has shown those most affected, like shift workers, had
+ k/ M, u) v5 o% QTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。higher levels of breast cancer.
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5 \$ K4 m+ D, V1 k+ f! ?公仔箱論壇Blind people, who are not vulnerable to fluctuations of melatonin, have
+ c! a, p4 {, ~) o0 L! P' z6 P( WTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。lower rates of cancer, it was found.tvb now,tvbnow,bttvb! z# E/ [" }8 O$ S4 W6 F9 {0 P$ v* z- B
1 A/ E8 z P% sTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Parents are advised to use dim red or yellow bulbs if their youngsters are scared of the dark.
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發表於 2008-8-1 11:02 AM
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