The benefits of swimming in summer
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1. Heatstroke prevention and cooling
In hot weather, choosing an indoor swimming pool to swim can play a role in preventing heatstroke and cooling down, because the human body emits heat in the water The speed of the water is nearly twenty times faster than in the air. Therefore, the heat generated by the human body in the water is far less than the heat emitted to the outside, which has a good cooling effect and is one of the best choices for heatstroke prevention.
2. Lose weight
Because the human body dissipates heat quickly in the water, and swimming requires whole-body exercise, the hands, feet, and head move together to beat the water surface, and add water. The resistance is also large, and people consume more physical energy in the water. For people who want to lose weight, it is nothing more than a very good and effective method. Especially for women, it can also play the role of tightening the abdomen and thinning the buttocks, and the body shape is more curvaceous.
3. Improve lung capacity
When swimming, you can choose snorkeling or breaststroke, or take a deep breath slowly to fill your lungs Air, then hold your breath and slowly dive into the water, and then slowly exhale the air until all is exhaled. Such long-term training can slowly improve cardiopulmonary function and increase lung capacity.
4. Enhance resistance
Since the human body dissipates heat quickly in water, in order to adjust the body temperature, the body needs to continuously replenish energy and promote the metabolism of the new city. Constantly balance the temperature inside and outside the body, and increase the adaptability to changes in external temperature, thus playing a role in resisting the cold. People who swim for a long time have their own resistance gradually enhanced.
5. Maintain a perfect figure
Since people need to overcome various resistances of water, consume physical energy, and perform anaerobic exercise when swimming, they can The effective burning of fat is converted into muscle, and this is just different from sports and bodybuilding on land. Swimming
can reduce various impacts on bones on land, and by overcoming water resistance, one’s overall muscles can be more streamlined and more symmetrical.
6. Helps prevent spondylosis
When swimming, choose the backstroke appropriately, which can make the whole person lie on the water, and with the support of hydraulic power, The human spine does not need to support the whole body at this time. In a stress-free state, the spine can be restored to its original position. In the long run, it can effectively prevent spondylosis.
7. Helps the skin to be smoother and more elastic
During swimming, the skin of the human body is subject to various resistances and frictions of the water, which has a negative effect on the skin. An effective full-body massage has been carried out to make the skin more elastic; at the same time, swimming is different from land sports, which can effectively reduce the stimulation of the skin by the salt in the sweat.
8. Helping children grow taller
Swimming is divided into freestyle, breaststroke, backstroke, butterfly, snorkel, etc. No matter which way, you need to use both hands and feet , requires the movement and coordination of the whole body, especially the effective stretching of joints and ligaments.
Disadvantages of swimming in summer
1. Susceptible to infectious diseases
Due to the comparison of the population in the swimming pool Therefore, there will also be a large number of infectious bacteria in the water, and people with poor immunity will be easily infected if they stay in the water for too long.
2. Causes cramps
Swimming for a long time will cause muscle overwork and cramps, and in severe cases, drowning may occur. It is also a big disadvantage of swimming.
When is the best time to swim in summer
Generally speaking, the weather is hot in summer, especially in dog days, so when exercising , to pay attention to some issues. Swimming time is very important, six or seven in the morning, four to five in the afternoon, and seven or eight in the evening are all good choices. It is best to choose to exercise between 5:00 and 7:00 in the afternoon, because during this time, the body’s function is better.
The sun’s UV rays are strongest (and cause the most damage) between 10am and 3pm. The best time to swim is after 4pm. In particular, people who often work indoors are less exposed to the sun and are more prone to sunburn.
But try not to swim after 10 pm, otherwise it will cause insomnia due to overexcited nerves.
Common sense of safe swimming in summer
1. Before swimming, you should warm up before entering the water. Although it is hot in summer, if you are in the water for a long time, your body temperature will increase It will drain, it will easily lead to cramps, and there may be a risk of drowning.
2. When we swim, we must be accompanied by adults. If we are not skilled, we should not swim in deep water.
3. When swimming in a river that loves the outdoors, you need to pay attention to the water quality of the river, to prevent the appearance of leeches, water snakes, and even poisonous snakes.
4. When we are swimming, some people sweat profusely and go directly into the water, which is very harmful and must wait for the sweat to dry before entering the water.
5. Before swimming in the swimming pool, put eye drops first. Now the swimming pool is actually very dirty and there are many bacteria. People stay in the water for too long, and the eyes will become red and itchy. allergy symptoms.
Summer swimming taboo
1. Avoid swimming before and after meals
Swimming on an empty stomach will affect appetite and digestive function, and unexpected situations such as dizziness and fatigue will also occur during swimming; swimming on a full stomach will also affect digestive function, and will also cause stomach cramps, even vomiting and abdominal pain.
2. Avoid swimming after strenuous exercise
Swimming immediately after strenuous exercise will increase the burden on the heart; a sharp drop in body temperature will weaken the resistance. Cause colds, sore throat, etc.
3. Avoid swimming during menstruation
Swimming during menstruation, germs can easily enter the uterus, fallopian tubes, etc., causing infection, resulting in irregular menstruation, menstrual flow Excessive, prolonged periods.
4. Avoid swimming in unfamiliar waters
When swimming in natural waters, do not jump into the water rashly. It is not advisable to swim in the surrounding waters and those with complicated underwater conditions to avoid accidents.
5. Avoid swimming in the sun for a long time
Prolonged exposure to the sun can cause sunburn, or cause acute dermatitis, also known as sunburn. In order to prevent the occurrence of sunburn, it is best to use an umbrella to shade the sun after going ashore, or rest in a shaded place, or use a bath towel to protect the skin on the body, or apply sunscreen on the exposed body.
Summer Swimming Gear
1. Swimsuit
Swimsuit bottoms must fit. If it is too large, it is easy to take water when swimming, which increases the weight and resistance of the body and affects the swimming action. Therefore, swimming suits should be comfortable to wear on the body.
2. Swimming cap
A swimming cap should be worn when swimming, especially for women, to prevent hair from getting messy, and sometimes poor water quality can prevent hair from turning yellow. Most of the swimming caps are brightly colored, which is convenient for lifeguards on the shore to find them.
3. Swimming goggles
If the water quality is not clean, bacteria can easily enter the eyes when swimming, resulting in pink eye and so on. To prevent eye disease, you need to wear swimming goggles for swimming. For beginners swimming, wearing swimming goggles can also keep their eyes open in the water.
4. Earplugs
It is unavoidable that water flows into the ears when swimming. Water in the ear is uncomfortable and can sometimes cause pain and affect hearing. To prevent water from entering the ear, earplugs should be provided.
5. Floating objects
Beginner swimmers, it is best to bring some floating objects, such as survival rings (clothes), foam water boards, etc. . However, when preparing these items, always check the life jackets and rings for air leakage to prevent accidents.
6. Bath Towels and Slippers
Bath towels and slippers are essential items for swimmers, and use a towel to wipe them off between swimming or after swimming. Dry the body, put on a bath towel, and put on slippers, which can not only keep warm, prevent colds, but also be more hygienic.
7. Nose clips
When swimming, water waves often rush water into the nostrils, causing choking and coughing, especially for beginner swimmers. In order to prevent water from entering the nostrils, it is best to prepare a nose clip, which can force inhalation through the mouth instead of the nose, which can avoid choking.