Moreover, many girls have no resistance to muscular men, thinking that such men are stronger and more secure.
However, the fact is ......
Strong arms, looming eight-pack abdominal muscles, chest muscles that can compete with women.
This handsome muscular man is Korean singer Kim Jong Kook. At 45, he is a fitness fanatic. He kept fit for 265,438+0 years and went to the gym almost every day.
Look at the way he exercises.
It stands to reason that such a person who works hard for iron should be very healthy.
However, some time ago, a medical report of Kim Jong Kook surprised netizens.
What's going on here? Why is such a strong man tested for kidney deficiency?
In fact, sexual dysfunction after fitness is not uncommon. Zhihu and various fitness forums have similar problems.
Seeing this, people can't help asking, can fitness and muscle training really make people healthy and strong?
For this problem, the general view on the Internet is that these people have problems because they practice too much, so they should exercise moderately, not too much.
For this view, I agree that everything goes too far, but I don't think that just the right amount can fundamentally explain the problem.
Why do fitness exercises need to be moderate? Can moderate fitness make you healthy and strong?
Master Iyengar was sickly since childhood. After studying yoga with my brother-in-law, I practiced yoga 10 hours every day, and got rid of all my illnesses. Until he was in his 90 s, he still insisted on practicing and teaching yoga.
I have never heard that a fitness expert can exercise 10 hours a day, so how do you explain this?
A paper published in Animal Behavior at the end of August, 2065438+2008 shows that the sperm count of muscular men is relatively low.
The research team led by Professor Yong Zhi Foo of the University of Western Australia recruited 1 18 male volunteers to take photos of their heads and whole bodies to show their figure. Then each volunteer was asked to collect sperm samples and evaluate their sperm quantity, vitality and morphology.
Then, the researcher asked 12 female volunteers of the opposite sex to rate the intensity of 1 18 male photos. At the same time, another group of 9 1 volunteers, both men and women, were asked to rate the photo intensity of 1 18 men. The two groups of volunteers scored the same on male strength.
When the researchers checked the sperm quality of the subjects, they found that the sperm number of men who were assessed as stronger was relatively small, although their sperm vitality and morphology were not much different.
Previously, researchers have observed this phenomenon in many animals. For example, the crusader stinkbug has strong hind legs to fight other males, but if it is caught by predators, it will break its legs to survive. After the leg is broken, the testicles of the Crusader bug will become bigger.
It is not clear how this energy is transferred from muscle tissue to sperm production and vice versa. What we know is that muscle growth and maintenance require a lot of energy (20% of ordinary people's metabolism is dedicated to daily muscle maintenance), and sperm production also requires a lot of energy. There is a natural conflict between them.
Yong Zhi Foo analysis may be hormone regulation. Testosterone will increase when muscles exercise, but high concentration of testosterone will interfere with sperm production.
From this point of view, it is a common phenomenon that muscle exercise leads to weak renal function. Developed muscles, stronger bodies and muscles are useless things.
So, why? Isn't this against the general idea?
The professor above didn't tell the root of the problem, but only gave an ambiguous answer, which was unconvincing.
In fact, our ancestors told us the answer to this question a long time ago. The Book of Changes says, "Whoever says to strengthen the outside will lose more internal support."
According to the theory of Yin and Yang in TCM, exercise belongs to Yang, rest belongs to Yin, exterior belongs to Yang and interior belongs to Yin. In the human body, bones and muscles are foreign objects compared with internal organs. Therefore, the bones and muscles belong to yang, and the five internal organs belong to yin.
However, muscle movement belongs to the category of "movement", so it can only exercise the muscles and bones of the human body, but can't adjust the function of internal organs, which is the external force mentioned in Yijinjing.
In the book "Seeking medical treatment is better than seeking yourself", it is said that the total amount of qi and blood in the human body is relatively constant under different circumstances for a period of time. It has its own distribution law. According to the needs of survival, qi and blood should first ensure the needs of viscera and organs, and then the limbs.
If the muscles of the limbs are exercised excessively, regardless of the needs of the viscera, the limbs will rob the viscera of limited qi and blood resources, so that the viscera can not get enough qi and blood.
In the case of deficiency of qi and blood, the zang-fu organs have to complete important work such as digestion and absorption, metabolism, immune defense, nerve regulation and endocrine hormone regulation.
At this time, the viscera with poor function will become worse, and the most common ones are exercise amenorrhea, exercise anemia and gastrointestinal dysfunction.
Many famous foreign athletes fell ill in their later years, and champion Ali suffered from Parkinson's disease. Bruce Lee is such a typical representative, who was all muscular, but died at a young age.
This can explain why we should exercise muscles in moderation, because it is at the expense of qi and blood, and our body's qi and blood are limited.
It can also explain why muscular men who look strong have kidney deficiency, because exercising muscles can only achieve external strength and internal dryness, but can't adjust the function of viscera.
Therefore, even moderate fitness exercise may not make people healthy and strong, because this does not change the fact that muscle training can only exercise bones and muscles, but not regulate the function of viscera.
The real health is the health of internal organs, and the real strength is the strength from the inside out.