Dental caries (also known as tooth decay or dental cavities) is a disease that damages the structures of teeth.
There are two types of caries:
caries found on smooth surfaces,
caries found in pits and fissures.
How dental caries is caused
Caries is caused by bacteria which can be normally found in the mouth. The bacteria produce acids that affect
In 18-19 centuries the word “stress” was used mainly in Physics to define:
the internal distribution of force of pressure within a body;
strain or deformation which has arisen in a subject under influence of such force.
In the beginning of 20th century Hans Selye, endocrinologist and biologist, has brought the word “stress” to medicine. He discovered that
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Once you have got the flu the best thing to do is to stay at home, have a rest and drink plenty of liquid - water or tea. If you don’t take care of yourself, it may take much longer time for recovery, or you may develop serious complications.
The Influenza virus usually starts like a
Influenza (flu) is an infectious disease that attacks respiratory system.
The virus is spread in droplets of respiratory fluid by direct person-to-person contact, including speaking, sneezing or coughing. It is also possible that a virus survives on the the surfaces that you will touch before touching your nose or mouth.
Actually, there are three types of influenza
It is obvious that 21st century can be regarded as the most stressful one. Although, scientists believe that stress is essencial to our body to adapt to changes, it’s important to know that too much of stress can cause mental, social, and physical health problems. To avoid all these it is important to learn to
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