It is the only place where food passes, but do you know that there are more than 65438+ billion microorganisms per square centimeter in our mouth, including good flora and quite a few bad microorganisms, which are the chief culprit of bad breath? They are parasitic between teeth and tongue, and produce unpleasant sulfur-containing compounds while decomposing food residues and saliva.

Countermeasures: keep your mouth clean, brush your teeth carefully in the morning and evening, remember to floss before brushing, and remember to clean your tongue after brushing. Bacteria left on your tongue can also spoil your breath.

2. Scalp

It has been found that there are about 654.38 million microorganisms in the scalp per square centimeter, of which demodex is the most. They like to put their homes on the scalp epidermis and combine them in groups of three or five to form a' big family'. Qi Xin worked together to make a living by sucking lipids secreted by sebaceous glands, and the final result was hair loss.

Countermeasures: If you want to fight against them, in addition to washing your hair frequently, it is best to comb your hair with a comb every morning and evening, which can stimulate the scalp and ventilate it.

3. Intestines

More than 400 kinds of bacteria live in the intestine. Intestinal Escherichia coli is a good guest of human inn. It helps us digest and is an indispensable part of our defense system. But E.coli outside the intestine can cause diseases. If it slips into food, it may cause nausea, vomiting and diarrhea.

Countermeasures: In order to protect the intestinal tract, it is recommended to drink 1-2 bottles of yogurt every day, in which probiotics can inhibit bad flora from dominating the intestinal tract and help good flora gain control over the intestinal tract. In addition, adhering to moderate exercise, often doing push-ups and rubbing the abdomen can prevent intestinal aging.

Step 4 underarm

In a crowded bus or subway, you may have experienced that unbearable smell more than once! It emanates from the armpit and pollutes the surrounding air with impunity. There are as many as 10- 10 billion microorganisms per square centimeter under the armpit. Sweat itself has no smell and is a' frequent visitor' to the armpit. Rod-shaped flora is nourished by fatty acids secreted by skin, which breeds a large number of bacteria and produces unpleasant smell.

Countermeasure: Sweating under the armpit is not a disease. As long as you take a bath and change clothes frequently, it can be eliminated. A cotton-padded jacket is the best choice for underwear.