The temperature of the hot bath we are used to is about 2℃-3℃ higher than the human body temperature, and it is slightly higher in winter than in summer.

Advantages:

Relieve muscle soreness: Taking a hot bath can accelerate the blood circulation of skin and muscle blood vessels, promote blood vessel expansion and metabolism, and accelerate the elimination of metabolites such as lactic acid, thus eliminating muscle fatigue and soreness.

After you come back from exercise or outing, you can take a comfortable hot bath.

Relieve stress and mood: A European study found that taking a hot bath can stimulate oxytocin secretion, thus relieving anxiety and stress.

If you are under great pressure from study or work, you might as well take a hot bath to relax.

Relieve the symptoms of nasal congestion: steaming bath water and warm and humid bathroom environment are natural "decongestants", which are beneficial to relieve the symptoms of nasal congestion.

Limitations:

Don't go to bed immediately after taking a hot bath: a study in the American Journal of Biology shows that you should take a hot bath at least 2 hours before going to bed, otherwise the change of body temperature after bathing will affect your sleep.

Pay attention to the control of temperature and time: the water temperature of the hot bath should not be higher than 40℃ as far as possible, and the time should not exceed 10 minute, otherwise discomfort such as rapid heartbeat and chest tightness will easily occur. Patients with cardiovascular and cerebrovascular diseases need special attention. Once they feel uncomfortable, they should stop taking a bath at once.

Low water temperature

The low water temperature here does not mean biting ice water, but cold water with a water temperature of about 18℃-20℃.

Advantages:

Refresh your mind: An American study found that cooling the water temperature to 20℃ in the last 5 minutes of bathing has a good refreshing effect. Children's shoes that still can't open their eyes after getting up in the morning may wish to take a bath in this way.

Limitations:

Don't take a cold bath after sweating. When people sweat a lot after work or exercise, skin pores and blood vessels are in a state of expansion. At this time, if suddenly stimulated by cold water, the body may have a cold, stomach cramps and other phenomena because of "no time to react", and it is easy to increase the burden on the heart.

Similarly, after slapping, the whole body blood circulation and heartbeat are obviously accelerated, the skin is flushed and the blood vessels are dilated. This time is not suitable for taking a cold bath, and it is best not to drink cold drinks.

Patients with cardiovascular and cerebrovascular diseases should never take a cold bath. Cold water may lead to systemic vasoconstriction, increased cardiac ejection resistance, and increased myocardial oxygen consumption, making the condition worse.

Taking a cold bath during menstruation, breastfeeding and pregnancy may cause/aggravate dysmenorrhea or induce a cold.

abstract

Whether the bath water is cold or hot, there is no standard answer, and each has its own advantages and disadvantages. Children's shoes can be selected according to the season, bathing time and their own situation. In short, it is good to be comfortable.