KIDS who sleep with the light on could risk leukaemia, parents weretvb now,tvbnow,bttvb% V' n6 [. h4 C6 `& w% V
warned yesterday.7 O% ~* {1 |- _5 e
1 [$ X1 G k- I! A+ N) M# F M5 ]Scientists have found the body needs darkness to produce a chemical
% W+ U- D1 C1 qthat fights cancer.
1 ?! `& s- C9 y: ~1 G& \" H5.39.217.774 f; }% Y! i# ^+ m1 q! N) ]
Even switching the light on for the toilet, staying up late, travelling
1 c1 k p/ l+ X5.39.217.77across time zones, or the light from street lamps can stop enough! g b+ K+ U9 g+ |! s
melatonin being made, they say.! _- \' {$ J, s! k
6 O9 E& O- @2 k6 K. j9 E( q
The body needs the chemical to prevent damage to DNA and its absence
* q [0 d1 Z8 l& @* vstops fatty acids reaching tumours and preventing them growing. Texas, s9 Y. Y' g9 S0 ^0 L& D" N
University Prof Russell Reiter, who led the research, said: 'Once you5.39.217.771 {+ K2 @) R) u1 X
go to bed you should not even switch the light on for a minute.5.39.217.776 z) J, n2 U, e* d& H
4 v5 \: |1 w0 R( l' l. x
'Your brain immediately recognises the light as day and melatonin1 x3 k7 h/ j2 y! t1 q/ E
levels drop.'
9 k' N- ?9 _& |* H: K4 x- X6 atvb now,tvbnow,bttvbtvb now,tvbnow,bttvb( y% c) p7 @+ B; U! m8 f4 ~ a
Rates of childhood leukaemia have doubled in the past 40 years.公仔箱論壇& T @ D$ V) j9 b
: t5 F# [. j0 Mtvb 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 yesterdaytvb now,tvbnow,bttvb; f8 _) Y4 }. T
heard that people were being subjected to more light at night than5.39.217.773 u" p0 y j- N% T) V
ever..5.39.217.77+ Y# {0 x4 G! L+ a$ h3 ]- J
. x6 l" _1 Z+ b. j9 r: u& gTVBNOW 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。This suppressed the production of melatonin which normally happens between 9pm and 8am.
7 u+ \1 S/ m9 v3 M6 P8 V5 v, Y8 I公仔箱論壇) U1 z/ r* B: a
Past research has shown those most affected, like shift workers, had
1 B4 R# r7 r9 h! [( \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。higher levels of breast cancer.tvb now,tvbnow,bttvb, E" ^ S: B) \- L# P
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。& E W+ n+ \/ o+ y+ X4 ~
Blind people, who are not vulnerable to fluctuations of melatonin, have
% ~. }1 d, }/ r- Wtvb now,tvbnow,bttvblower rates of cancer, it was found.
$ l" c0 H" r3 C3 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。/ k J* B" I1 {& b! l) u$ c' `, [( u
Parents are advised to use dim red or yellow bulbs if their youngsters are scared of the dark.tvb now,tvbnow,bttvb8 Q3 H" A3 Q! ~4 w# g5 q0 r' e
|
發表於 2008-8-1 11:02 AM
| 
