KIDS who sleep with the light on could risk leukaemia, parents were
) p+ z# @4 a9 s0 L( j+ G9 V; W6 ?warned yesterday.www3.tvboxnow.com7 O- a8 Z& q' s8 L2 l
/ Q* m. t/ a" l" }) ]: N) l7 }Scientists have found the body needs darkness to produce a chemical
" n, ^7 h, D7 X$ g; utvb now,tvbnow,bttvbthat fights cancer.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。# V; p0 s; B; H2 V. l' }" ?
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Even switching the light on for the toilet, staying up late, travelling
0 W3 i7 y: G( r3 xacross time zones, or the light from street lamps can stop enoughtvb now,tvbnow,bttvb( M0 n2 K& q* ]/ V
melatonin being made, they say.
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The body needs the chemical to prevent damage to DNA and its absence
; P q$ u5 i0 q5 X% a4 MTVBNOW 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。stops fatty acids reaching tumours and preventing them growing. Texas公仔箱論壇9 |! L; i6 [% L! a
University Prof Russell Reiter, who led the research, said: 'Once you
$ A4 k# l/ L) r# V公仔箱論壇go to bed you should not even switch the light on for a minute.公仔箱論壇6 J8 Q4 \1 Y7 l" l( _8 }
' P# x; L1 O z& i6 g2 a公仔箱論壇'Your brain immediately recognises the light as day and melatonin$ O3 q9 M2 Q6 M' m
levels drop.'www3.tvboxnow.com' Z4 U0 K! b" A _# h7 @; Q7 b
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Rates of childhood leukaemia have doubled in the past 40 years.tvb now,tvbnow,bttvb* T" g7 K& j7 `8 l; q d+ W9 d
0 n4 V4 K3 k# U& a3 i& gtvb now,tvbnow,bttvbAbout 500 youngsters under 15 are diagnosed with the disease each year and around 100 die. A conference on childhood leukaemia in London yesterday4 y- @5 y/ K& p1 a% h/ `
heard that people were being subjected to more light at night than4 P( e8 e7 @1 N m. O+ r
ever..
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This suppressed the production of melatonin which normally happens between 9pm and 8am.: W/ E' _2 y( J1 j3 {0 Z9 ]4 y+ }
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Past research has shown those most affected, like shift workers, had" x- l: M) D5 t* I
higher levels of breast cancer.
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Blind people, who are not vulnerable to fluctuations of melatonin, have/ R6 u" X% p# Z1 D4 X# Z8 g
lower rates of cancer, it was found.
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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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