应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜    

小木虫论坛-学术科研互动平台 » 科研生活区 » English Cafe » Entertainment » 【Pure water】Why women live longer than men
71/1返回列表
查看: 998  |  回复: 6
只看楼主 @他人 存档 新回复提醒 (忽略) 收藏    在APP中查看

sgh_119

至尊木虫 (职业作家)

[交流] 【Pure water】Why women live longer than men

It is the ultimate battle of the sexes - and women usually win.

Now scientists have come up with a new theory for why woman live, on average, longer than men: men are more biologically ‘disposable’.

The controversial theory, developed by Professor Tom Kirkwood of the University of Newcastle, suggests that the female body is better at carrying out routine maintenance and keeping the body’s cells alive.

Professor Kirkwood believes there is now growing evidence to suggest that men are more disposable than women, because the cells of their bodies are not genetically programmed to last as long as they are in females.

Many scientists believe that the aging process is caused by tiny faults throughout our body. As the tiny faults build up the length of our lives is determined by how quickly our body is able to carry out running repairs.

As the cells miss opportunities to repair themselves our body gradually degrades until we eventually die.

Professor Kirkwood’s theory behind why our cells do not mend every tiny problem in our body is that it is built into our DNA. The reason we do not live forever is because it would have cost our hunter-gather ancestors too much energy to constantly replenish cells when hunger was a more immediate danger, he says.

‘Under the pressure of natural selection to make the best use of scarce energy supplies, our species gave higher priority to growing and reproducing than to living forever,’ he writes in the magazine American Scientist.

'In humans, as in most animal species, the state of the female body is very important for the success of reproduction', he writes.

‘The foetus needs to grow inside the mother’s womb, and the infant needs to suckle at her breast. So if the female animal’s body is too much weakened by damage, there is a real threat to her chances of making healthy offspring. The man’s reproductive role, on the other hand, is less directly dependent on his continued good health.’
回复此楼

» 猜你喜欢
1楼 2010-11-11 00:59:30
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

shuwenhe
★
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
2楼2010-11-11 04:05:49
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

nono2009

超级版主 (文学泰斗)

No gains, no pains.

优秀区长优秀区长优秀区长优秀区长优秀版主
★
小木虫(金币+0.2):抢了个小板凳，给个红包
Good to know.
回复此楼
3楼2010-11-11 06:50:20
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

feng1205

木虫 (正式写手)
it is TRUE ，like it so much
赞一下 回复此楼
4楼2010-11-11 10:34:00
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

xia_chong

金虫 (文坛精英)

优秀版主
I don't want to live long.
赞一下 回复此楼
Godhelpsthosewhohelpthemselves!
5楼2010-11-11 11:26:42
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

奥拓哥

银虫 (小有名气)
★ ★ ★
lxuyan(金币+3):Thanks for sharing your opinion~~:tiger04::tiger23::tiger25::tiger40::tiger28: 2010-11-11 14:07:42
i do not agree with above headline,there are many vivid facts around us
that so many males live longer than females.
maybe we should keep a cautious attitude toward scientist's researches,
because most of them are earn a living by composing  so called research.
of course,we should do our survey basing on facts.
at least,i consider it as an imperfect declaration , this is my own opinion.
welcom to point out my mistakes
赞一下(1人) 回复此楼
慢慢地学习
6楼2010-11-11 13:02:02
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

poyoro

木虫 (文坛精英)
引用回帖:
Originally posted by 奥拓哥 at 2010-11-11 13:02:02:
i do not agree with above headline,there are many vivid facts around us
that so many males live longer than females.
maybe we should keep a cautious attitude toward scientist's researches,
becau ...

i agree with you
回复此楼
7楼2010-11-11 14:52:35
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 sgh_119 的主题更新
71/1返回列表
普通表情 龙 兔 虎 猫 高级回复 (可上传附件)
信息提示
关闭
请填处理意见
关闭