Why do tennis players scream during a match?
Russian Maria Sharapova, who lives in the USA, is the most famous tennis player in the world. Her cries are famous throughout the world; according to measurements, they reach 100 decibels. The train in the subway is just as loud.
And the explanation for the screams is simple: the athlete hits while exhaling. They cut wood in much the same way: by squatting and exhaling.
https://youtu.be/KN0KA4QjK04
Why are hockey players toothless?
Another world-famous athlete from Russia is hockey player Alexander Ovechkin. He plays for the Washington Capitals and is famous for playing and living without his upper front tooth.
Hockey is one of the toughest and most contact game disciplines.
Indeed, a coward does not play hockey. Because you can be left without teeth. For example, one of the NHL players lost 7 teeth in one match. see also
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Many people then turn to the help of doctors and rush to get implants. But when the turn comes to lose them in a hard collision, it will be much more difficult to treat. Therefore, Alexander acts farsightedly, saying in all interviews that he will take up the beauty of his smile and tinker with implants after finishing his career.
Although he is known to the whole world without one tooth.
The impact of sport on the human body
Physical education, sports and health are closely interconnected. The influence of environmental factors, the rhythm of modern life, and the constant presence of aggressive microorganisms in the environment weaken people's health. That is why it is so important to strengthen the body’s defenses in all available ways - a balanced diet, timely treatment of various ailments, preventive measures aimed at strengthening the immune system, as well as through physical activity.
Relevance of physical activity
With the development of technological progress with the advent of computers, smartphones and other “devices” that make work and daily life easier for people, people’s physical activity has sharply decreased compared to even the immediate past decade.
This leads to a gradual decrease in a person’s functional abilities, weakening of his musculoskeletal system, changes in the functioning of internal organs - changes, unfortunately, for the worse. Lack of movement and energy consumption leads to malfunctions in all systems (muscular, vascular, cardiac, respiratory) and the body as a whole, contributing to the occurrence of various diseases.
That is why the influence of sport on human health is so important. Physical education and sports sometimes become the only forms of physical activity available to a person, with the help of which the natural need for movement and exercise is satisfied.
The influence of movement on systems and organs
Many articles, scientific studies, even dissertations have been said and written about how sport affects human health. Let's try to present all this information in a concise and accessible form. So, sport is good for health for the following reasons:
- The musculoskeletal system is strengthened
: the volume and strength of muscles increases, the bones of the skeleton become more resistant to stress. During training in the gym or when jogging, swimming, cycling, oxygen supply to the muscles improves, blood capillaries that are not used at rest are activated - moreover, new blood vessels are formed. Under the influence of regular training, the chemical composition of muscle tissue changes: the content of energy substances in them increases, which leads to intense metabolic processes, protein synthesis and the formation of new cells. Systematic physical education prevents the development of diseases of the support and movement organs, such as osteochondrosis, herniated intervertebral discs, arthrosis, atherosclerosis, and osteoporosis. - The nervous system is strengthened and developed
. This occurs due to increased agility, speed and improved coordination of movements. Sports activities contribute to the constant formation of new conditioned reflexes, which are consolidated and formed in successive rows. The body gains the ability to adapt to more complex loads and perform exercises in a more efficient and economical way to achieve the desired results. The speed of nervous processes increases: the brain learns to react faster to stimuli and make the right decisions. - Improves the functioning of the cardiovascular system
. The influence of sport on the human body is expressed in increasing the endurance of the heart and blood vessels. Training forces all organs to work intensively. During exercise, muscles need increased blood supply, which forces the heart to pump a larger volume of oxygenated blood per unit of time. At rest, the heart pushes approximately 5 liters of blood into the aorta in one minute: during training, this amount increases to 10 and 20 liters. The heart and blood vessels of a person involved in sports quickly get used to the stress and just as quickly recover from it.
- Improves respiratory function
. During physical activity, due to the increased need of tissues and organs for oxygen, breathing becomes deeper and more intense. The amount of air passing through the respiratory organs per minute increases from 8 liters at rest to 100 liters when running, swimming, or exercising in the gym. The vital capacity of the lungs also increases.
- Immunity increases and blood composition improves
. In people who exercise regularly, the number of red blood cells increases from 5 million in one cubic mm to 6 million. The level of lymphocytes (white blood cells), whose task is to neutralize harmful factors entering the body, also increases. This is direct evidence that sport strengthens protective forces - the ability to withstand adverse environmental conditions. Physically active people get sick less often, and if they are exposed to bacterial or viral aggression, they cope with it much faster. - Metabolism improves
. A trained body better regulates the content of sugar and other substances in the blood. - The attitude towards life changes
. Physically active people are more cheerful and less susceptible to sudden mood swings, irritability, depression and neuroses.
The impact of sport on a growing body
Medical statistics show how sports and children’s health are connected. According to doctors, 70% of frequently ill children and adolescents do not play sports and often skip physical education lessons. Mental stress at school, constant sitting at the computer or in front of the TV at home lead to the fact that the body does not receive physical relaxation.
This contributes to functional disorders and turns schoolchildren or students into “young old people”, susceptible to a wide variety of diseases that were previously more often diagnosed in older people (pathologies of the skeletal system, vascular and heart diseases).
The influence of physical education and sports on the body of schoolchildren and students is invaluable - it is young and growing people who need constant loads and movement. The sedentary lifestyle of modern children is of extreme concern to doctors and teachers.
Popularization of sports
The beneficial effects of physical activity on humans are evidenced by medical research, practical observations, facts and even oral folk art: numerous proverbs about health and sports. Modern medicine and pedagogy are trying to popularize sports and instill in the mass consciousness a positive attitude towards physical education. Health and sports days are held in schools and higher educational institutions; schoolchildren are given free passes to visit swimming pools and training halls. However, the percentage of those who ignore the importance of physical activity for health is still high.
You should play sports with a reasonable approach and moderation: overload during training is unacceptable. There is also a risk of traumatic injury, so be sure to take safety precautions.
Can you become a professional athlete by watching videos on YouTube?
Difficult, but possible.
Probably the only time in the history of sports happened to a Kenyan named Julius Yego. The famous javelin thrower, record holder of his country and continent, silver medalist of the 2016 Olympics...
I started by watching videos on Youtube.
Boxing became an official sport in 1900
Boxing is a sport in which opponents throw various punches at each other while wearing special gloves. Rophery is always in control of the fight. It generally lasts from three to twelve rounds. But it's always different.
For the first time people started talking about boxing in Egypt. Scientists have found images depicting fighters with wrapped arms.
Boxing officially became a sport only in 1900 . It is worth noting that already in 1918 it was introduced into compulsory military training. Special institutions were also created that specialized in training people in boxing.
They tried to cancel it many times, but a commission of people was assembled, which did not allow boxing to be removed from sports. In 1935, the government of the country decided to create special public organizations for certain sports. It was as a result of such work that the All-Union Boxing Section appeared. She began her activities in 1959.
Why do football players shave their legs?
Definitely not for the sake of beauty.
Business necessity: Constant massages using oils and gels require smooth feet.
Football players shave their hair several times a week also because they often have to use tape, which is very unpleasant if you apply tape over your hair.
How much is an Olympic medal worth?
The name “gold” in relation to the main Olympic medal has a symbolic meaning. The award has a different meaning and symbolism: its design reflects the culture of the host country of the games. As for the composition, as a rule, medals are made of a metal alloy, onto the surface of which particles of noble metal are sprayed. Their weight is only a few grams.
Auction prices for sports awards are low: about $50.
Quick facts about health. Health facts - 55 interesting facts about health
Interesting facts about health. Health is wealth! Being healthy is a must. Everything in this world is replaceable, except health. The famous aphorism “prevention is better than cure” is popular among everyone and everyone agrees with it. Maintaining health requires a healthy diet, exercise and a good lifestyle, hence it is not a difficult task to be healthy. Let's look at some health facts.
Health facts
- Exercising when you are young will improve your brain function as you get older.
- Insulin, which is responsible for converting excess sugar into fat, is produced by the body at its peak in the evening.
- Poor nutrition in pregnant mothers can cause premature aging of the baby's heart.
- When your body is sedentary, your brain slows down due to decreased availability of fresh oxygen to the blood.
- When you feel a pulse in your wrist or neck, it means blood is starting to move and stop in the artery.
- Neck pain can come from stress and anxiety.
- Ginger can reduce symptoms of induced muscle pain by up to 25%.
- Eating too much meat can accelerate biological aging of the body.
- The human head loses heat at the same rate as any other part of the body.
- There are more bacterial cells in your body than human cells.
- Depressed people get colds more often. Energetic, happy and relaxed people are immune to colds and flu.
- Laughter increases the activity of antibodies in the body by 20%, helping to destroy viruses and cancer cells.
- Blackberries help the brain retain new information.
- Every time you eat or drink, you are either feeding the disease or fighting it.
- Your weight may fluctuate from 0.1 to 1.5 kg throughout the day.
- A diet rich in vegetables and fruits may reduce the risk of cardiovascular disease, including stroke and heart attack.
- 30-40% of UV still penetrates cloud cover in cloudy weather.
Earwax protects the inner ear from fungi, bacteria, insects and dirt. It also cleans and lubricates the ear canal.
Do professional racing drivers have a driver's license?
Dutch racing driver Max Verstappen, a driver for Red Bull Racing, received his driver's license after becoming the youngest Formula 1 driver. Before that, he drove without a license for six months.
However, as of 2020, there is a rule prohibiting athletes from participating in auto racing competitions without a driver’s license.
Why are pool tables covered with green cloth?
Mostly, tables are covered with green cloth, although there are also other shades, in particular red. There are two explanations. First: green is the color of grass. Croquet - billiards grew out of this game. When the game was moved indoors and special tables began to be used, the color of the cloth was determined by itself: natural, green.
Another explanation comes from the field of psychology. Billiards is a game that requires increased concentration, and a match often lasts for several hours. Green color is less tiring for players.
In addition, in games with multi-colored balls (snooker or pool), all the balls are clearly visible on such a cloth.
Ancient Greek Olympians competed completely naked
To people who were brought up in modern society, this will seem like something perverted. But for the ancient Greek Olympians, everything was completely different.
Anyone who wanted to take part in the Olympic Games had to compete completely naked . But since the men were undressed, girls who were not yet married were not allowed into the competition.
Initially, the Greeks fought wearing loincloths. But the reason why they had to fight naked is still unknown. There is a story about a woman winning the games. After this, a law was issued banning the participation of females in games.
There is also a version that during the battle, one man’s bandage, which was on his hips, came off. He got very confused in it and then lost for this reason. Therefore, so that the bandages do not interfere, the athletes completely undressed before the competition.
Why do track and field athletes run counterclockwise?
There are several opinions on this matter.
The following seems most reasonable. The ancient Greeks were the first to introduce running into physical culture. According to their worldview, sport is a person’s overcoming himself and the forces of nature. In nature, the Sun moves clockwise, so overcoming the natural order means running in the opposite direction.
This theory is confirmed by the fact that not only track and field athletes – runners and fast walkers – move counterclockwise. Races at hippodromes, races in automobile and motorsports are held in the same way.
see also
Top 10 Formula 1 technologies that are important for ordinary car enthusiasts
The exception is Formula 1, where drivers drive in a clockwise circle.
Maximum heart rate is calculated using the formula “220 minus age”
In fact, the well-known formula “220 – age”, which allows you to calculate the maximum load, was once derived as a result of fitness tests on men. For women, as sports doctors believe today, a different formula (accordingly, derived as a result of many years of fitness tests and research!) is more suitable. Researchers from Northwestern University of Evanston (USA) analyzed the results of stress tests of more than 5,000 representatives of the fair sex and came to the conclusion that the heart rate for women should be 206 minus 88 percent of age. The ideal formula for “fat burning,” however, remains the same – 60% of maximum heart rate and above.
Alexey Kovalkov
nutritionist, presenter of the programs “Food with and without rules”, “Family Size”
It is not enough to simply perform physical activity; it is important to be able to combine it with proper breathing. There should be no shortness of breath, palpitations, pain, or profuse sweating. The pace is chosen correctly if during a fitness workout you are able to carry on a conversation without shortness of breath and if half an hour after class you feel the strength to do more.
Why are tennis balls bright yellow?
For a long time, tennis balls were white.
England is the birthplace of tennis, and the famous Wimbledon tournament requires all players to wear only white. The ball, the main equipment for the game, is no exception.
But with the advent of color television, white balls became very inconvenient to follow, and from the early 1970s, balls of the bright yellow color that are familiar today were introduced into professional tennis use.
In Wimbledon, adhering to traditions, they played with white balls until the mid-1980s.
The Olympic rings symbolize the unity of the five continents
Many people know that the Olympic rings speak of the five continents of our globe. Five rings are arranged in a specific order: blue, yellow, black, green and red .
Blue symbolizes Europe, yellow symbolizes Asia, black symbolizes Africa, green symbolizes Australia and red symbolizes America.
The color of the entire canvas remains white. It is worth noting that this is not only a symbol of peace, but also simply an ordinary necessity. White is always easier to see and is superimposed without any distortion.
The first Olympic flag was raised in 1920 in Antwerp.
Why do golf balls have indentations?
Balls of this type appeared in 1908. Notches affect flight speed and trajectory. Such a ball can travel 2/3 more distance than a smooth one, because the grooves improve the aerodynamics of flight.
But the key point is still the accuracy of the shot: a “non-smooth” ball receives a smoother trajectory upon impact, so the golfer can aim as accurately as possible.
Exercising has a positive effect on the sexual health of men and women
It has long been known that exercise increases testosterone in both women and men. Libido begins to increase. All this has a positive effect on sexual health .
During physical exercise, women and men experience blood flow to the pelvic organs due to strong blood circulation. It is worth noting that proper nutrition can also be added to this.
Nutrition is like fuel for our body. Its functioning depends on it. If we are completely healthy, then we look better. An excellent figure and mood also attract men.
