Everyone knows how difficult it is to stay in an unventilated area for a long time: headache starts to ache from stuffiness, lethargy, weakness, drowsiness appear … Many people explain this by the lack of oxygen. And they are mistaken.
In the air of a poorly ventilated room, the oxygen content decreases so slightly that it can not have any negative effect on the body. Glory, for example, about the beautiful air of Kislovodsk spread throughout the world. And in this city. Continue reading
The first menstruation (it is called menarche) is an important event in the girl’s life. Unexpectedly, she, as a rule, does not happen – older girlfriends inform. And under the influence of these conversations, some girls are even afraid of the onset of menstruation. Unfortunately, for some reason, many mothers are embarrassed to talk with their daughters about this in detail, limited only to hygienic advice. Continue reading
Cough is a protective reaction of the body to irritation of the human respiratory tract. During cough, the body tries to get rid of mucus, or foreign particles trapped in the airways. Various bacteria and viruses can also cause coughing.
A healthy person in normal conditions does not have a cough. It occurs in response to irritation of the mucous membrane of the respiratory tract or pleura and is a complex reflex act. With the help of cough, our body is freed from particles of dust and various chemicals that have fallen into the bronchi. Continue reading