Anyone who has ever owned a pet knows that
Animals have estrus periods
Once they reach a certain period
they cannot control their "desire to mate"
But have you noticed that
Human being an advanced animal
It seems that there is no so-called "estrus"
Why is this? ?
Humans do not need estrus
Human reproduction is very different from other animals
This difference can be traced back To
The evolution of humankind
With the continuous development of the human brain
We are gradually liberated from pure instinctual drive
Beginning to consciously control and regulate our own behavior
We learn to use sex as a
way of communication and interaction
not just an act of reproduction< /p>
Sex can also serve as
a way of expressing love and intimacy
We can have sex at any time
Human beings as advanced Animal
A creature that occupies the top of the food chain
Without the threat of natural enemies and the worry of food shortage
Naturally, it can achieve "free estrus" for 365 days
p>
Animals having estrus are forced to survive
< p>Other animals other than humansOn the one hand, we must consider "eating enough"
On the other hand, we must prevent "being eaten"
So , animals need to reproduce at the right time
to improve the survival rate of their offspring
and their own survival chances
Therefore, estrus is a
p>
Adapting to changes in the external environment
Physiological adaptation mechanism
During seasons when food resources are sufficient
Animals can use the estrus period to reproduce
p>
To maximize the use of food resources
Improve the survival rate of offspring and their own survival
For example, animals in the Arctic
Breeding is usually carried out in summer
Because the temperature in summer is relatively high
Food resources are relatively abundant
Reproduction is usually not carried out in winter
Because the temperature is too low and food resources are scarce
It is not conducive to reproduction and Survival of offspring
When food resources are scarce
Animals can reduce reproductive behavior
to avoid being attacked by natural enemies due to distraction
In addition, estrus can also help animals in the face of other environmental stresses
reproduce in the right time and environment
to improve survival Chances and survival rate of offspring
So, evolution from species From a dog's perspective
Animals have estrus
Probably to optimize chances of reproduction and survival
For example, a dog's estrus usually lasts 2 to 3 Weekly
The estrus period of most breeds occurs in spring and autumn
There will be a large amount of secretions
causing male dogs to be excited
This behavioral pattern allows dogs
to breed at the right time
so that more offspring will survive
A cat's estrus usually occurs in spring and autumn
It lasts from 5 to 14 days
If pregnancy does not occur within this time
The cat will enter estrus again within a few weeks
During estrus, the cat will become excited and restless
Meowing constantly to attract the attention of male cats
This behavioral pattern allows cats toReproduce when the environment changes
Adapt to environmental changes
Females have regular reproductive cycles
Although humans do not have a fixed estrus period
But the female reproductive cycle is regular
The female reproductive cycle is usually about 28 days
The ovulation period is approximately
the 14th day of the menstrual cycle left and right
This allows couples to better
plan for fertility and use contraception
During this period
Female bodies will undergo some special changes
such as increased body temperature and secretions Changes, etc.
These changes are beneficial to pregnancy
In addition, during the ovulation period
Female sexual desire will increase
It can also be compared to animals The "estrus"
Changes in male testosterone levels
Human reproduction is not like that of animals
There is an obvious breeding season
Rather, it can be done at any time
Therefore, men do not have an obvious estrus period
But like women, men’s sex and sexual intercourse
are also affected by male hormones such as testosterone. The influence of testosterone
Changes in testosterone levels are common
A dynamic process
Usually affected by many factors
Such as psychological Factors, physiological factors, environmental factors, etc.
In one day
Testosterone levels in men change many times
usually peaking in the early morning
and then gradually declining throughout the rest of the day
p>
In addition, men’s testosterone levels
also change with age
usually peaking between the ages of 20 and 30
Then gradually decline
Even, men's testosterone levels will also vary depending on the weather and seasons. Fluctuations in diet, diet
and exercise
For example, in the cold winter
Men's testosterone levels may decrease
After exercise, men's testosterone levels
may increase
The impact of testosterone on men
Testosterone is one of the main sex hormones in men< /p>
Also known as androgen
Plays a vital role in the development and maintenance of male sexual function
It plays a vital role in the development and maintenance of male sexual function
Reproductive system and sexual function development
Plays an important role
Testosterone can promote the growth and development of the corpus cavernosum
It can also promote muscle contraction during erection
Thus maintaining an erection
The higher the testosterone level
The stronger the male's sexual desire and sexual drive
The erectile function and quality will be improved
The number and motility of sperm are also higher
Insufficient testosterone levels may lead to
sexual function problems such as erectile dysfunction and premature ejaculation
It can also lead to poor development of reproductive organs,
decreased quality, erectile dysfunction and other problems
So, if men also have "estrus"
it should refer to The most important thing is the change of "testosterone level"
Male friends should pay attention
Improve your own testosterone level
< img src="/uploads/allimg/20230722/-230H2112342F6.png" title="Why animals have estrus, but humans can have estrus 365 days" alt="Why animals have estrus, but humans can have estrus 365 days In heat" width="580" height="447"/>