KIDS who sleep with the light on could risk leukaemia, parents were
T% K" T, x6 w+ G# stvb now,tvbnow,bttvbwarned yesterday.
j: l. `: y" v0 a3 t 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。6 e& j, F# E& P, @
Scientists have found the body needs darkness to produce a chemical
+ P: j% j/ s! J4 |" @9 h% Kthat fights cancer.
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; j" z P+ x* e2 u2 w/ lEven switching the light on for the toilet, staying up late, travelling
4 ~* d6 V8 D% t/ p9 S }2 W# N& Xacross time zones, or the light from street lamps can stop enough
: L! u) ^9 s* j. n4 Q melatonin being made, they say.
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The body needs the chemical to prevent damage to DNA and its absenceos.tvboxnow.com8 S7 L, X( j2 X# T
stops fatty acids reaching tumours and preventing them growing. Texas
2 I: b2 V- \( p7 Y4 ~( `7 ]University Prof Russell Reiter, who led the research, said: 'Once you
6 W/ O8 a6 R u( ~公仔箱論壇go to bed you should not even switch the light on for a minute.( v# l. f5 s; _7 b% Q5 _# i
" f) G! c- r( ctvb now,tvbnow,bttvb'Your brain immediately recognises the light as day and melatonin
2 d5 W- f: b& F: ?" s6 R! u9 D4 C公仔箱論壇levels drop.'tvb now,tvbnow,bttvb/ z" D; n2 g j$ @, T- O
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Rates of childhood leukaemia have doubled in the past 40 years.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。* y6 U; K* _% C
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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
% B) C. U$ i0 T2 N% Stvb now,tvbnow,bttvbheard that people were being subjected to more light at night than公仔箱論壇' k) ^, B+ q/ G9 R2 k9 b4 a' m
ever..
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This suppressed the production of melatonin which normally happens between 9pm and 8am.
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* j7 m3 y. C% r7 D2 MPast research has shown those most affected, like shift workers, hados.tvboxnow.com8 L1 Q$ a* l. e5 z& `
higher levels of breast cancer.tvb now,tvbnow,bttvb* X2 M( T% }0 E7 J4 z, c8 B6 Z
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Blind people, who are not vulnerable to fluctuations of melatonin, have$ w7 y$ s1 @; o. `! B
lower rates of cancer, it was found.
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( ^. g& n m+ ^2 o1 i) H9 P4 G$ ~公仔箱論壇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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