KIDS who sleep with the light on could risk leukaemia, parents were
; Y$ O- q* A" A* P4 E$ F5.39.217.76warned yesterday.tvb now,tvbnow,bttvb! b6 r* _" d( C* A8 \
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Scientists have found the body needs darkness to produce a chemical# n/ v& |( r0 W, M9 S
that fights cancer.
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Even switching the light on for the toilet, staying up late, travelling
+ v3 Y" \" {# U7 t3 A6 \+ m1 f9 Zacross time zones, or the light from street lamps can stop enough
- Z! u! E: Z& l2 Q* I# L melatonin being made, they say.
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9 ^ K& B+ v# p; \$ Dtvb now,tvbnow,bttvbThe body needs the chemical to prevent damage to DNA and its absence
6 d& S# S' ]# ^stops fatty acids reaching tumours and preventing them growing. Texas
# b( z; `, D# q% M5.39.217.76University Prof Russell Reiter, who led the research, said: 'Once you公仔箱論壇* [- Y, n! Y: h0 J3 n
go to bed you should not even switch the light on for a minute.tvb now,tvbnow,bttvb/ d8 `/ Z; k% q6 a/ u
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'Your brain immediately recognises the light as day and melatonintvb now,tvbnow,bttvb5 w' M- {& S: l: q' D2 Y) R6 ^
levels drop.'
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/ ]% }1 X g+ V) d4 ptvb now,tvbnow,bttvbRates 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# y0 e! X. ]1 k t4 ?% k2 q
heard that people were being subjected to more light at night than
- T7 U) _ ~/ K0 Q公仔箱論壇ever..
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This suppressed the production of melatonin which normally happens between 9pm and 8am.
* P1 @' s0 |0 V% c0 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。5 X* A8 W) ?9 b
Past research has shown those most affected, like shift workers, had
3 I; L7 ?, C$ c2 K* J3 y0 Hhigher levels of breast cancer.
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x/ @0 S, y1 Z+ Q3 ]6 }+ }* OBlind people, who are not vulnerable to fluctuations of melatonin, have
& c; E! Y0 W: f v4 }; G, Ttvb now,tvbnow,bttvblower 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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