First, read the English article below.

Getting really clean involves first understanding what we are dealing with. There are all kinds of solvents, soaps, cleaning agents, scrubs, etc. for almost any kind of substance you might get on your body, but once that special circumstance is cleared, it's back to basics. There are three basic things we need to clean when we wash. Each part requires a different method of cleaning.   First is the dirt and grunge that seems to stick to us from who knows where. Even sitting in a clean room still gets us dirty. Second is the dead skin cells that are constantly flaking off our skin. Third is the body oils under the skin, not just those on the surface. Dirt, grunge, filth, etc. that are on the surface of the skin tend to stick to us for two reasons. They generally have some cohesive power of their own and/or they mix with oils in our skin, which are always being secreted for protection from the environment. That's why even dust getting on our skin will eventually seem like greasy mud.  We have two types of body secretions - oil and water (sweat). Those and the things that mix with them are best cleaned with a compound that breaks down the oils, makes them more soluble and allows them to be washed off easily. This is what soap is. Regardless of the additives for scent, cream, color, etc. the goal is to get the oils broken down and off the body. This is all there is to washing in most people's minds, but they're wrong. Read on! How often do you really need to take a bath or shower? No more than 3-4 times per week. While recent studies reveal that almost 60 percent of people shower every day, there's some evidence that showering less can help your body improve its natural self-cleaning mechanisms more thoroughly. The more effectively your body cleans itself, the healthier and cleaner you are, inside and out.  The more you shampoo your hair, the more you strip it of natural oils, and the more often your body will have to produce those natural oils to make up for it. If you give yourself a shower break, you might find... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Bắt đầu từ những thứ cơ bản. Hiểu tại sao da bám bẩn để bạn có thể xử lý nguyên nhân. Tắm ít hơn nhưng hiệu quả hơn. Chọn xà phòng chất lượng. Làm sạch tế bào da chết. Cân nhắc nhiệt độ nước. Làm sạch những nếp gấp và mọi ngóc ngách trên cơ thể. Xông mặt trước khi tắm. Gội đầu và ủ tóc 3-4 lần mỗi tuần. Lau khô cơ thể.