What the latest research revealed about the number of times one should bathe per week

There are various scientific and social views on bathing or washing the body, which has become an essential part of many people's daily routines. Especially in modern society, daily bathing is considered a symbol of cleanliness and good health.

However, according to a discussion between Australian health experts Dr. Norman Swan and Tegan Taylor, several points emerge that make us rethink whether daily bathing is truly essential. A key point raised here is that bathing is often driven more by social and cultural needs than by health requirements.

According to an assignment submitted by a woman named Ingrid, she stated that she does not bathe daily during winter and remains healthy by using clean underwear and outerwear. An analysis based on this revealed that washing the body is not merely about removing germs, but also an effort to appear pleasant in society and prevent body odor.

Looking at human history, it appears that no group of people in history washed their bodies as frequently as modern humans do. In the past, water was a limited resource, and the lack of clean water sometimes made bathing a health risk. In many ancient cultures, full body immersion bathing was very rare. Instead, they would wipe their bodies with a wet cloth, cleaning their hands, feet, and face. Even though civilizations like the Roman Empire had public bathing places (Baths), these were used more for social gatherings and business activities than purely for cleanliness. Additionally, religious influences also affected bathing. Historical records show instances where certain religious groups, especially nuns, considered full body exposure during bathing to be immoral. It was emphasized in this discussion that the habit of daily soap bathing became popular in the 20th century with the proliferation of office-based jobs and the commercial objectives of selling soaps and perfumes.

Dermatologists believe that daily soap bathing can harm the skin's natural balance. Soap acts much like the detergent used to wash an oily pan. Our skin surface contains a natural oil layer and beneficial bacteria (microbiome). Frequent washing with soap removes this protective oil layer, which can lead to conditions like dry skin, eczema, and itching. When skin dries and cracks, there is a risk of harmful bacteria entering the body through these areas. Specifically, the destruction of beneficial microorganisms can lead to long-term health problems. Doctors point out that to prevent conditions like eczema, it is more suitable to use alternative cleansers (non-soap cleansers) like sorbolene instead of soap. They also indicate that for someone not living in an excessively hot or sweaty environment, not bathing daily will not cause a major health problem.

When comparing bathing habits in different countries around the world, climate appears to be a major factor. According to data published in 'The Atlantic' magazine, people in hot countries like Brazil bathe an average of about 12 times a week, while in countries like the United Kingdom, China, and Japan, it is around 5 times a week. This is not merely a cultural matter but also driven by environmental necessity. For example, Dr. Norman Swan states that he only bathed twice a week when he was a child. However, living in a hot country like Australia makes daily bathing a necessity. Nevertheless, it is a well-known fact that even prominent figures like Steve Jobs bathed very infrequently, believing that a vegetarian diet prevented body odor. Body odor often depends not on our skin but on the clothes we wear. Therefore, experts believe that changing clothes daily and keeping them clean is more important than bathing.

Reducing the frequency of bathing also has a positive impact on the environment. Frequent bathing not only wastes a large amount of water but also introduces chemicals like shampoo and conditioner into water sources. Furthermore, the damage to aquatic ecosystems from products containing microplastics is significant. Therefore, from an environmental perspective, bathing every other day or only when necessary can be considered a more sustainable practice than bathing twice a day. However, the most important health habit not to forget here is handwashing. Doctors strongly emphasize that washing hands with soap after using the toilet and before eating should never be skipped. This is because many disease-causing germs enter the body through unclean hands.

Finally, it is clear that daily soap bathing is not essential for a healthy life. It is more appropriate to use mild cleansers to protect the skin's natural defenses and to determine the frequency of bathing according to the climate and one's activity level. While cleanliness is important for social acceptance, it should not become an obsession. Continuously maintaining basic hygiene practices such as wearing clean clothes and washing hands can protect against diseases and promote good health. 
(Source: ABC Science)