Wear well-fitting winter clothing. Winter clothing should not be so tight that you can’t breathe easily, but fit and fit comfortably. As long as there is a loose place, water will be allowed to accumulate in that place, which will absorb the body temperature of that place. When you are exercising, you will squeeze the water in that place to other parts of the cold-proof clothing and contact with sea water to move your body away; at the same time, you will bring in cold water to absorb your body heat.
Wearing a headgear because there are many arteries under the scalp, there will be a lot of blood and body heat passing through here. Most users of wet-type cold-proof clothing will increase the collar of the headgear so that it can be closely integrated with the cold-proof clothing. If the headgear feels oppressive, you can use scissors to cut the opening on the face. For users of dry-type cold-proof clothing, because this type of cold-proof clothing has a different headgear design, there is no too much pressure on the neck and can easily turn the head.
If you feel cold, diving in shallow places is not only warmer in the shallow places, and your winter clothing will not become thinner due to squeezing. If the water exceeds 18 meters, the thickness of the general winter clothes will be squeezed to about half of the original thickness. This way, the degree of warmth will be greatly reduced.
When you are shaking, it is the time to go ashore. At this time, you can no longer bear too much mentally, and it may make you make bad decisions. There is no fun at this time.
Pay attention to heat preservation when resting on the surface. Here are a few suggestions for heat preservation. When you take off your winter clothes, dry your body with a towel. Or put on a diving windbreaker to avoid the cold brought by the wind. In any case, when you take off your winter clothes, dry your skin and hair first, and put on warm clothes.
Buy your own winter clothes. If you mostly dive in water below 27 degrees Celsius, consider buying your own wet or even dry winter clothes. Generally, although the appearance of cold-proof clothing for rental outside looks good, too much repeated diving will cause the nylon material to be squeezed and deformed. The air bubbles inside are almost squeezed out, without air bubbles, there is no insulation effect at all.
Will you feel warm when urinating in the winter clothes?
It will make your skin feel warm, but it will be two reasons for consuming your body temperature. The first is that your body heat will be excreted with urine, and then exchanged with cold water outside in your winter clothes. The second is that when the perception under your skin tells the hypothalamus that it is warm, the hypothalamus will order the blood vessels in the area to expand in order to dissipate heat in the body. This illusion will make you lose more body temperature. Although cold skin will feel uncomfortable, the insulation effect is better than warm skin.
If you can avoid it, don’t pee in your winter clothes. In unavoidable circumstances, if you are healthy, your urine will have no effect; if you are in a hurry, when combined with sea water, it will be tasteless and colorless. So who can tell?
It’s cold in the tropics
Because water is very conductive to heat, even at a water temperature of 27 degrees, people’s skin will feel as if they are 6 degrees in the air. Therefore, divers in the tropics face a silent hypothermia. They never tremble, nor feel cold, but they feel tired and lose enthusiasm for diving. People lose not only their body temperature, but also their motivation to dive. Therefore, it is recommended to wear a thinner winter jacket in the tropics to stay longer.