KIDS who sleep with the light on could risk leukaemia, parents were" V/ D# e! l6 G: y- W3 y4 S( I
warned yesterday.
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Scientists have found the body needs darkness to produce a chemicalTVBNOW 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 C# h% f9 Q* b, V. ^
that fights cancer.4 q/ b4 S4 e# ^$ e1 A
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Even switching the light on for the toilet, staying up late, travelling
5 s6 z5 H7 ]' H8 Hacross time zones, or the light from street lamps can stop enough
/ A( l$ Z8 `4 [% B melatonin being made, they say.( }( A% B6 I( s
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The body needs the chemical to prevent damage to DNA and its absencetvb now,tvbnow,bttvb' C" x% O- G% [* e5 r
stops fatty acids reaching tumours and preventing them growing. Texas公仔箱論壇; [$ B& b H) k" f5 w' _3 h
University Prof Russell Reiter, who led the research, said: 'Once youTVBNOW 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。& Q- d7 Y9 K z
go to bed you should not even switch the light on for a minute.
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- N5 s3 S$ \; q Q2 f% etvb now,tvbnow,bttvb'Your brain immediately recognises the light as day and melatonin# A7 G+ P! L0 B! X+ H
levels drop.'% Z4 m* I7 G5 u0 m. e
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。9 @4 a6 x6 {6 ~9 M8 G5 b
Rates of childhood leukaemia have doubled in the past 40 years.- O2 q6 p5 S! F0 Y8 I. q
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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
9 t# G3 B/ e0 [( dTVBNOW 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。heard that people were being subjected to more light at night than
2 F7 R v7 I7 N3 r# ?ever..
2 o$ i1 I! r9 K1 a. b公仔箱論壇
/ Q7 w6 g* L7 K @4 @公仔箱論壇This suppressed the production of melatonin which normally happens between 9pm and 8am.www2.tvboxnow.com* l5 t1 o4 b( I& Y+ ^4 r- \6 l3 d
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Past research has shown those most affected, like shift workers, had( O6 o- S4 g0 G% C4 N
higher levels of breast cancer.
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Blind people, who are not vulnerable to fluctuations of melatonin, havewww2.tvboxnow.com% X' M" u8 l, d7 J. f0 N
lower rates of cancer, it was found.www2.tvboxnow.com. Z" m) Z' f0 _& ]
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Parents are advised to use dim red or yellow bulbs if their youngsters are scared of the dark.www2.tvboxnow.com: F( {$ V- n# J) S: M+ [
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發表於 2008-8-1 11:02 AM
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