 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 7 | 1/1 | 返回列表 |
| 查看: 1033 | 回復(fù): 6 | |||
sgh_119至尊木蟲(chóng) (職業(yè)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.’ |
回復(fù)此樓» 猜你喜歡
281求調(diào)劑（0805）
已經(jīng)有23人回復(fù)
-
265求調(diào)劑
已經(jīng)有9人回復(fù)
-
279分求調(diào)劑 一志愿211
已經(jīng)有10人回復(fù)
-
招收調(diào)劑碩士
已經(jīng)有12人回復(fù)
-
296求調(diào)劑
已經(jīng)有8人回復(fù)
-
招收博士1-2人
已經(jīng)有3人回復(fù)
-
085700資源與環(huán)境308求調(diào)劑
已經(jīng)有11人回復(fù)
-
274求調(diào)劑
已經(jīng)有8人回復(fù)
-
290求調(diào)劑
已經(jīng)有4人回復(fù)
-
一志愿西南交通 專碩 材料355 本科雙非 求調(diào)劑
已經(jīng)有4人回復(fù)
★
小木蟲(chóng)(沙發(fā)+1，金幣+0.5):恭喜搶個(gè)沙發(fā)，再給個(gè)紅包
小木蟲(chóng)(沙發(fā)+1，金幣+0.5):恭喜搶個(gè)沙發(fā)，再給個(gè)紅包
 |
2樓2010-11-11 04:05:49
nono2009
超級(jí)版主 (文學(xué)泰斗)
No gains, no pains.
-
專家經(jīng)驗(yàn): +21105 - ESEPI: 1
- 應(yīng)助: 28684 (院士)
- 貴賓: 513.911
- 金幣: 2555230
- 散金: 27828
- 紅花: 2148
- 沙發(fā): 66666
- 帖子: 1602255
- 在線: 65200.9小時(shí)
- 蟲(chóng)號(hào): 827383
- 注冊(cè): 2009-08-13
- 性別: GG
- 專業(yè): 工程熱物理與能源利用
- 管轄: 科研家籌備委員會(huì)
3樓2010-11-11 06:50:20
feng1205
木蟲(chóng) (正式寫(xiě)手)
- 應(yīng)助: 0 (幼兒園)
- 貴賓: 0.06
- 金幣: 3919.1
- 帖子: 451
- 在線: 88.2小時(shí)
- 蟲(chóng)號(hào): 498092
- 注冊(cè): 2008-02-03
- 專業(yè): 凝聚態(tài)物性 II ：電子結(jié)構(gòu)
4樓2010-11-11 10:34:00
xia_chong
金蟲(chóng) (文壇精英)
- ESEPI: 43
- 應(yīng)助: 0 (幼兒園)
- 貴賓: 1.591
- 金幣: 10270.8
- 散金: 2377
- 紅花: 34
- 沙發(fā): 160
- 帖子: 12455
- 在線: 1941.8小時(shí)
- 蟲(chóng)號(hào): 804303
- 注冊(cè): 2009-07-06
- 性別: GG
- 專業(yè): 粒子物理學(xué)和場(chǎng)論
- 管轄: English Cafe
5樓2010-11-11 11:26:42
★ ★ ★
lxuyan(金幣+3):Thanks for sharing your opinion~~:tiger04::tiger23::tiger25::tiger40::tiger28: 2010-11-11 14:07:42
lxuyan(金幣+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  |
6樓2010-11-11 13:02:02
poyoro
木蟲(chóng) (文壇精英)
- ESEPI: 13
- 應(yīng)助: 3 (幼兒園)
- 貴賓: 1.05
- 金幣: 1492.8
- 散金: 12871
- 紅花: 23
- 沙發(fā): 209
- 帖子: 10651
- 在線: 1172.7小時(shí)
- 蟲(chóng)號(hào): 589231
- 注冊(cè): 2008-08-29
7樓2010-11-11 14:52:35
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 sgh_119 的主題更新
| 7 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考博] 東華理工大學(xué)化材專業(yè)26屆碩士博士申請(qǐng) +8 | zlingli 2026-03-13 | 8/400 |
|
|---|---|---|---|---|
|
|
[考研] 求調(diào)劑，一志愿:南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩，總分289分 +3 | @taotao 2026-03-19 | 3/150 |
|
|
|
[考研] 346求調(diào)劑[0856] +3 | WayneLim327 2026-03-16 | 6/300 |
|
|
[考研] 一志愿華中科技大學(xué)，080502，354分求調(diào)劑 +4 | 守候夕陽(yáng)CF 2026-03-18 | 4/200 |
|
|
|
[考研] 材料專業(yè)求調(diào)劑 +5 | hanamiko 2026-03-18 | 5/250 |
|
|
|
[考研] 【同濟(jì)軟件】軟件（085405）考研求調(diào)劑 +3 | 2026eternal 2026-03-18 | 3/150 |
|
|
|
[考研] 0854可跨調(diào)劑，一作一項(xiàng)核心論文五項(xiàng)專利，省、國(guó)級(jí)證書(shū)40+數(shù)一英一287 +8 | 小李0854 2026-03-16 | 8/400 |
|
|
|
[考研] 070300化學(xué)319求調(diào)劑 +6 | 錦鯉0909 2026-03-17 | 6/300 |
|
|
|
[考研] 280求調(diào)劑 +6 | 咕嚕曉曉 2026-03-18 | 7/350 |
|
|
|
[考研] 0703化學(xué)調(diào)劑 +3 | 妮妮ninicgb 2026-03-17 | 3/150 |
|
|
|
[考研] 308求調(diào)劑 +4 | 是Lupa啊 2026-03-16 | 4/200 |
|
|
|
[考研] 材料專碩326求調(diào)劑 +6 | 墨煜姒莘 2026-03-15 | 7/350 |
|
|
|
[考研] 275求調(diào)劑 +4 | 太陽(yáng)花天天開(kāi)心 2026-03-16 | 4/200 |
|
|
|
[考研] [導(dǎo)師推薦]西南科技大學(xué)國(guó)防/材料導(dǎo)師推薦 +3 | 尖角小荷 2026-03-16 | 6/300 |
|
|
|
[考研] 機(jī)械專碩325，尋找調(diào)劑院校 +3 | y9999 2026-03-15 | 5/250 |
|
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
|
[考研] 304求調(diào)劑 +5 | 素年祭語(yǔ) 2026-03-15 | 5/250 |
|
|
|
[考研] 070305求調(diào)劑 +3 | mlpqaz03 2026-03-14 | 4/200 |
|
|
|
[考研] 288求調(diào)劑 +4 | 奇點(diǎn)0314 2026-03-14 | 4/200 |
|
|
|
[考研] 080500，材料學(xué)碩302分求調(diào)劑學(xué)校 +4 | 初識(shí)可樂(lè) 2026-03-14 | 5/250 |
|