What functions does the skin have

The skin is an important part of the body and is a protective layer that isolates the body from external bacteria. If the skin is broken, it can easily cause bacteria to grow, thus affecting the health of the body. The function of the skin is mainly to protect the internal organs of the body. The pores on the skin detoxify through sweating. They can also regulate body temperature and sense temperature changes in the environment. You can learn about what the skin does.

Seven functions of skin:

Respiration: Wrapping your body with plastic wrap will make you feel stuffy, because the skin's breathing is blocked. But the breathing volume is only 5% of the lung breathing volume.

Thermoregulation: Skin is a strange substance: it allows air to pass through but does not conduct heat well. When the outside temperature changes, the skin is the first to respond, regulating blood circulation and sweating to keep the body temperature constant. This is also the function of the skin.

Sensing: The skin is also the body's sensor, and its layers are covered with countless sensory nerves. Able to quickly sense various stimuli from outside the body, including cold, touch, pain, pressure, and sensation. When the sensory nerves sense these stimuli, they will be transmitted to the brain, which will quickly become alert and issue orders to direct the body's organs to stay away from danger.

Metabolism: The skin's renewal cycle is 28 days, but due to current environmental pollution and aging, the skin's renewal cycle will also be extended.

Absorption: The skin has good absorption function, but its absorption is not as simple as imagined. Because it is an absorber with a "filter", only those special molecules that have been processed can pass through the skin's pores and reach the deep layers of the skin, thereby promoting skin absorption. Cosmetics are made using this property.

Secretion and excretion function: The human body has two sets of water excretion systems, one is the excretion system, namely the kidney excretion system; the other is the skin. It removes excess urea, ammonia, fat, iodine, bromine, arsenic, mercury and other substances from the body by secreting sweat and sebum, thereby assisting the kidney's excretion function.

Protective function: It covers every corner of the body and protects the internal organs and other organs of the body. At the same time, the stratum corneum of the skin, which contains a little oil, also has the function of preventing bacterial invasion and bacterial reproduction. The skin also has a refracting effect on light or UV rays to prevent it from damaging deeper layers of the skin. People also say that "skin is the body's first line of defense."