Why females live longer than males!!

[thesolar65]

Researchers from the University of Exeter in Britain found that male flies die earlier than their female counterparts when forced to evolve with the pressures of mating and juvenile survival.

The results could help researchers understand the mechanisms involved in ageing.

"We found dramatic differences in the effects of sexual and natural selection on male and female flies. These results could help explain the sex differences in lifespan seen in many species, including humans, and the diverse patterns of ageing we observe in nature," said lead researcher professor David Hosken.

The team used populations of the fly Drosophila simulans that had evolved under different selection regimes.

The flies were then subjected to elevated and relaxed conditions of sexual and natural selection.

To elevate sexual selection, groups of males were housed with single females.

A stressful temperature was used to elevate natural selection.

The study shows that mate competition (sexual selection), along with survival (natural selection), is tougher on males than it is on females, reducing their lifespan by about a third.

"Males court females by singing, dancing and smelling good but their efforts come at considerable cost and this cost is amplified when they also have to cope with stressful temperatures," Hosken added.

The results showed that under relaxed sexual and natural selection, male and female flies had very similar life spans - around 35 days.

However males that evolved under elevated sexual selection and elevated natural selection had a much shorter life span - just 24 days.

The research was published in the journal Functional Ecology.

 

[SMC]

In reality, because women sit at home all day and do no significant physically demanding work. And because men have to listen to women screaming, yelling, shouting and being bitter.

 

[Krate M]

So this is going to be another misogynistic thread where people mock women, including their own mother and sisters.
My mom is not a house wife, she works twice as much as my dad. And my dad works hard. Please don't lower the standard of the forum by making unsubstantiated generalised remarks.

 

[Chinese-Dragon]

Because women don't use their fists to bash in each others skulls on a regular basis?

 

[vayuu1]

Abey, jyada jeeyengi na,saala saara din to hamara khoon peeti rehti hai.

 

[Bong]

Yes, Women dont usually take part in any wars and violences.

Because women don't use their fists to bash in each others skulls on a regular basis?

 

[SMC]

^^ Nope, they usually just encourage men to go and beat up or kill other men.

 

[utraash]

Women are cruel creature of GOD... Haha...

@levina

 

[Zarvan]

Researchers from the University of Exeter in Britain found that male flies die earlier than their female counterparts when forced to evolve with the pressures of mating and juvenile survival.

The results could help researchers understand the mechanisms involved in ageing.

"We found dramatic differences in the effects of sexual and natural selection on male and female flies. These results could help explain the sex differences in lifespan seen in many species, including humans, and the diverse patterns of ageing we observe in nature," said lead researcher professor David Hosken.

The team used populations of the fly Drosophila simulans that had evolved under different selection regimes.

The flies were then subjected to elevated and relaxed conditions of sexual and natural selection.

To elevate sexual selection, groups of males were housed with single females.

A stressful temperature was used to elevate natural selection.

The study shows that mate competition (sexual selection), along with survival (natural selection), is tougher on males than it is on females, reducing their lifespan by about a third.

"Males court females by singing, dancing and smelling good but their efforts come at considerable cost and this cost is amplified when they also have to cope with stressful temperatures," Hosken added.

The results showed that under relaxed sexual and natural selection, male and female flies had very similar life spans - around 35 days.

However males that evolved under elevated sexual selection and elevated natural selection had a much shorter life span - just 24 days.

The research was published in the journal Functional Ecology.

Because they kill males

 

[Darth Vader]

cz they dont have someone who sucks life out of them

 

[faisal6309]

What the...

It doesn't matter who work harder than its partner. Its upto you if you are taking the stress more seriously. Whoever has more stress in their life and take it seriously, will die before its partner. If you try to live without tension, then you life will increase, otherwise it will decrease.

Try to live a happy life no matter under what circumstances you are living, it will increase your life.

 

[The SC]

Oestrogens, the women hormones, this is the scientific answer.
But there are thousands of subjective answers, some funny and some not so funny.

Estrogen and heart disease
Women suffer less from heart disease due to vasculo-protective action of oestrogen which helps in preventing atherosclerosis. It also helps in maintaining the delicate balance between fighting infections and protecting arteries from damage thus lowering the risk of cardiovascular disease.

Immunological role
Oestrogen has anti-inflammatory properties and helps in mobilization of polymorphonuclear white blood cells or neutrophils.

 

[Backbencher]

Try to live a healthy life , hit the gym , maintain a fit and lean body throughout your life span and then piss on this bs article .

 

[third eye]

Here are some reasons why males die early

.. and some more.

.. and finally

 

[Levina]

Women are cruel creature of GOD... Haha...

@levina

you bet!!

Researchers from the University of Exeter in Britain found that male flies die earlier than their female counterparts when forced to evolve with the pressures of mating and juvenile survival.

The results could help researchers understand the mechanisms involved in ageing.

"We found dramatic differences in the effects of sexual and natural selection on male and female flies. These results could help explain the sex differences in lifespan seen in many species, including humans, and the diverse patterns of ageing we observe in nature," said lead researcher professor David Hosken.

The team used populations of the fly Drosophila simulans that had evolved under different selection regimes.

The flies were then subjected to elevated and relaxed conditions of sexual and natural selection.

To elevate sexual selection, groups of males were housed with single females.

A stressful temperature was used to elevate natural selection.

The study shows that mate competition (sexual selection), along with survival (natural selection), is tougher on males than it is on females, reducing their lifespan by about a third.

"Males court females by singing, dancing and smelling good but their efforts come at considerable cost and this cost is amplified when they also have to cope with stressful temperatures," Hosken added.

The results showed that under relaxed sexual and natural selection, male and female flies had very similar life spans - around 35 days.

However males that evolved under elevated sexual selection and elevated natural selection had a much shorter life span - just 24 days.

The research was published in the journal Functional Ecology.

The research is very dilettante because,
One, humans 're not Drosophila simulans flies.
Two, men 've higher rate of death by heart attack and other such diseases because of their bad habits of smoking and drinking and higher testosterone levels, not found in these flies.
Third, longer duration of reproductive years of life and thus greater exposure to endogenous estrogen is associated with a lower risk of age related diseases in women and specially heart attack.

Yes, Women dont usually take part in any wars and violences.

wars???
are you serious???

Because women don't use their fists to bash in each others skulls on a regular basis?

fist fights?? really??