Hello, Dr. Ke! The weather is really hot now. When I take a shower at night, I just turn on the faucet and take a cold shower, hoping to stay cool for a summer. But I found that after taking a cold shower, it became even hotter. What's going on?
Finally, I would like to ask another question, is it better to take a cold shower to relieve heat, or a warm bath to relieve heat?
Many people may also be curious about the same product, why does a cold shower, despite being cold water, not only fail to cool down, but also become even hotter?
The answer is, taking a sudden shower with cold water will quickly lower the current body temperature, making people feel cool. However, the human body is very clever. In order to protect itself, it will constrict blood vessels and skin pores, raising body temperature back.
So, when you dry your body, due to the body warming up and slow heat dissipation, you will actually feel hot.

It should be noted that if the body's heat is suppressed for a long time and cannot be dissipated, it can also lead to heatstroke, resulting in symptoms such as dizziness, headache, nausea, blackening of the eyes, and heavy soreness in the limbs.

In addition, sudden cold water stimulation causes skin blood vessels to contract, leading to a significant increase in cardiac blood volume. It also stimulates the secretion of adrenaline, resulting in an overall increase in blood pressure. People with high blood pressure or coronary heart disease are prone to dangerous events in the cardiovascular and cerebrovascular systems if they cannot bear the burden.
Therefore, considering the above factors, it is recommended that everyone take a warm bath, that is, choose a water temperature similar to their body temperature, about 35-37 degrees Celsius.
This kind of water temperature can moderately stimulate the expansion of skin blood vessels, which has a more significant cooling effect than cold baths and is also healthier for the human body.