3月27日（金） 焦って飲むとガンのもと?

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Leave tea 4mins or up your cancer riskThursday, March 26, 2009 METRO
Take your time - 4mins according to experts

You often hear about the health benefits of drinking tea – but if you don't let it cool down, it apparently increases your risk of cancer by eight-fold.
Scientists say you should let your brew stand for at least four minutes after pouring. The hotter it is, the greater the risk.
The chances of developing cancer of the oesophagus, the tube carrying food and liquid to the stomach, soared when tea above 70ºC (158ºF) was drunk.

Drinking tea with a temp­erature of between 65ºC (149ºF) and 69ºC (156ºF) still doubled the risk. However, there was no increased danger linked to the amount of tea drunk.
The finding emerged in the British Medical Journal after research in northern Iran, which has one of the world's highest oesophageal cancer rates.
The area was chosen because consumption of alcohol and tobacco – the cancer's usual causes – is low there but drinking very hot, black tea is common.
Experts in Australia said the findings 'were no cause for alarm'.
'Follow the advice of Mrs Beeton, who prescribes a five- to ten-minute interval between making and pouring tea,' said Dr David Whiteman.

http://www.metro.co.uk/news/article.html?Leave_tea_4mins_or_up_your_cancer_risk&in_article_id=598572&in_page_id=34

要約すると、70℃以上の熱いお茶を飲むと、8倍も食道ガンになる確率が上がる。そして、65～69℃のお茶でも、その危険は2倍以上。ただし、紅茶の飲む量とは、全く関係ない。

イランの北部は、ガンの一般的な原因と言われる、たばこと酒の消費は少ないものの、熱い紅茶を飲むことで知られる。ところが、世界で最も食道ガンの発症率が高い地域。

オーストラリアの専門家によると、これにより警鐘を鳴らす必要はなく、紅茶のゴールデンルールに則り、お茶を入れるのに5～10分の間隔があって良いとのこと。

熱い方が美味しく飲める気がしてたけど、無理して熱いものを食べたり飲んだりしちゃいけないんだなぁ。知らなかった。。。