Shampoo or Shower First? Expert Warns of the Simple Mistake That Could Be Deadly

Showering and shampooing are daily routines, but if not done correctly, it can pose many hazards.


Showering and bathing is not only about cleaning the body but also about protecting health, relaxing, and taking care of one’s well-being. However, improper bathing methods can significantly affect health.

Many people immediately pour water from their heads to their feet when they start showering. According to Dr. Doan Du Manh, from the Vietnamese VnEpress, most people shower before they bathe, but chemical research suggests that bathing before shampooing is more beneficial.

Bathing before shampooing helps the body gradually adjust to the cold water temperature without negatively affecting the nervous system. This is especially important for individuals with cardiovascular or blood pressure problems, as shampooing before bathing can cause temperature differences and dizziness.

In our bodies, the circulatory system is crucial, and when it’s damaged, it affects the entire body. The circulation, especially in the human brain, is fragile. Sudden exposure to high temperatures can lead to risks such as sudden ruptures, which can cause bleeding in the long run. Immediate hair washing can result in poor blood circulation, leading to various brain vascular diseases or even brain hemorrhage.

Some precautions for bathing to protect health

When entering the shower, the first thing to note is not to pour water directly on the body. Instead, let your hands and feet get accustomed to the water first, allowing the body to adapt before showering from the neck down and finally shampooing.

The water temperature for bathing should not be too cold or too hot. The appropriate temperature is between 38 and 44 degrees Celsius. If the water is too cold, it can cause illnesses such as a cold or stroke. Too-hot water can dry the skin and remove its natural oil layer. Warm water helps the scalp and body adjust to the most comfortable temperature range, avoiding undesired effects. The ideal time for shampooing is about 5-7 minutes.

After showering, dry yourself and wear clothes to avoid standing in cold wind or air conditioning, even in the summer.

When showering, pay attention to the shampoo’s pH level to avoid drying out the skin and hair.

The bathroom should be well-sealed, especially during cold winter days. Showering should be done before 10 PM to avoid showering too late, or it’s also not advisable to shower too early in the morning.

When bathing, remember to clean the showerhead, bathroom utensils, and toilet properly.

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Frequently asked questions

It is recommended to shampoo first, followed by a shower. Shampooing first ensures that you wash away any dirt, oil, and residue from your hair, which can then be rinsed off your body during the shower. This order also helps prevent skin and scalp issues as it keeps the dirt and oil from settling on your skin after washing.

Showering before shampooing can lead to skin and scalp issues. The dirt, oil, and residue from your hair can settle on your skin, clogging pores and leading to acne and other skin problems. It can also cause an oily scalp and hair issues like dandruff.

Yes, shampooing first ensures a thorough cleaning of your hair and scalp. It helps remove any product build-up, sweat, and environmental pollutants, leaving your hair and scalp feeling fresh and healthy.

The frequency of shampooing depends on your hair type and lifestyle. Generally, it is advised to shampoo every 2-3 days for normal hair. However, if you have oily hair, you may need to shampoo more frequently, while those with dry hair can shampoo less often.

A simple way to remember is to keep your shampoo bottle near the shower head or in a visible spot. This way, you are reminded to shampoo first each time you step into the shower.