If you are interested in a mysterious health therapy, you've heard the name of the Dutch, Wim Hof, who is known as "The Iceman", an Extreme Sports lover.She is a world record holder of ice swimming, who likes low temperatures, and is now extending the time to put the whole body on the ice.He believes that when you leave Central Heating, there are "chain -reactive health benefits," from improving sleep to endorphin generation and enhancing immune function.
While it is strange, such as immersing himself in an ice water pool, he claims that the number of people who take a cold water shower due to the influence of Hoff has increased and has benefits.Is there a scientific basis there?
Related Storyストレスによる不健康な状態を見極めるための５つのサインと、その対処法Nine benefits of taking a cold water shower
Have you ever seen an ice bag to promote recovery after athlete?The basis of the idea of taking a cold water shower is very similar to that.
"Generally, cold stimulates blood vessels and causes blood vessels (to narrow blood vessels)," said the TRAINING ROOM health & fitness lecturer Hashit Jeswa.
"Basically, it occurs to send blood to the most needed places in the body, and in this case it is sent to an important organ for life support. So blood is returned to the heart and then moved to the lungs.It is replenished and rich in oxygen is sent to the body. In other words, fresh oxygen and nutrients can be obtained in the right place. "
"In addition, low temperature is useful to alleviate inflammation that may have occurred after exercise, so it speeds up recovery and relieves pain."
Related Storyさまざまなワークアウトで、カロリー燃焼を60％アップさせる10の方法According to a research from a Virginia Commonwealth School of Medicine, a 2-3 minutes of cold water shower after the "adjustment period" that gradually cools the water 1-2 degrees a day and about 5 minutes.It is said that the symptoms of depression can be effectively reduced.
The research team has a dense cold receptor (cold recipient) on the skin, so when it touches the cold temperature, the sympathetic nerves are activated and the brain is sent from the end of the peripheral nerves to the brain, so this positive positive.I see that the result has come out.Although it is necessary to do even more research to support this result, it can be expected as a foothold.
Related Story無気力な状態になってしまう理由For the same reason, put the ice on the burned part or back when you hurt your back.A study listed in the academic magazine "North American Journal of Medical Sciences" that the coldness has an anesthesia effect.
The basics are the same as what Jeswa mentioned above, and the coldness could cause blood vessels to reduce swelling and slow the speed of pain signals to the brain.
Examining hot shower and cold showering alternately reduces absence by illness by 29 %.2016 research shows that those who take a cold shower for 30 to 90 seconds after taking a hot shower have less illness than those who have taken only a warm shower.
"This is probably due to the rise in metabolic, because of the shock due to temperature changes," said Jeswa."The body accelerates the function and tries to make up for it."
The keyword here is "support".A study published in the academic magazine "CELL" reveals that if exposed to low temperature, it will change the composition of intestinal bacteria in order to resist obesity, increase metabolism, and change the constitution of intestinal bacteria so that it is suitable for fat burning.This is based on an experiment that is placed in a low temperature for 10 days.
Nevertheless, there is evidence that taking a cold water shower will activate brown fat, a type of fat that helps burn the body by burning calories.
Related Storyワークアウト前にコーヒーを飲むと脂肪燃焼がアップする？This is not surprising.If your body temperature drops in a cold water shower, it's a bit shocking to your body.
"I feel stressed," said Jeswa."Therefore, the sympathetic nerve causes a" struggle escape reaction "and suddenly becomes more agile."
"In the case of low -temperature physical stress, it becomes more oxygen, and as a result, it promotes the increase in respiratory rate and forcibly captures more oxygen into the body."
"Cold water is good for the skin," said Kay Gleves, an Esteners of London's Medical Spa "REGENTS PARK AESTHETHETICS"."Just wetting cold water after cleansing will make your skin brighter."
"In addition, the pores of the skin become smaller to confine the core body temperature, improving the texture and appearance of the entire skin.".Dr. Michael Bernish, a doctor of Jonquille Chantery Clinic.
In 2000 research, researchers put a trial person in 14 degrees water for one hour.You may think it was an extreme experiment, but it was a trigger to reduce the value of cortisol, a stress hormone in the body.
As Jeswa has already mentioned, cold shower contracts blood vessels in the body.Then the blood runs around to keep the organs warm, and the blood flow is promoted.Improving blood circulation leads to better health in cardiovasculars, so you can keep your heart healthy and in good condition.
Nevertheless, it is important to remember that the low temperature state is to keep the body warm and the heart can be a danger, and as a result, it is important to remember that it can be dangerous.British Heart Foundation.
Getty ImagesSo how do you use the health benefits of cold water shower?
"There is no best way to take a cold water shower," said Jeswa."Some people take a constant low -temperature shower for a short time for 5 to 10 minutes, while others change between hot and cold temperature intermittently."
"The conclusion is that there are individual differences in the body, so it is important what is most effective for that person. If you try and error in various ways, you can see which method is most effective for your body.prize"
And it's important to remember that a cold water shower is not suitable for anyone.If you have experience with abnormalities, hypertension, and a decrease in the immune function, and are worried about whether there are any benefits in a cold -water shower, first get the advice of a medical specialist.
Translation: Mitsuko Kanno from Harper's Bazaar UK