A psychologist is a clinical or non clinical person who studies the human mind, the clinical psychologist will prescribe drugs. This world has people with many different types of psychological disorders, from obsessive to compulsive disorders where people believe that they have control over another person's life.
These people are a danger to society because they believe in making others do what they think is right, in reality they just want things to be more convenient for them selves. There was a family with parents and two brothers with an obsessive mother and son, the obsessive mother and son interfered so much in the other son's life finally destroying him completely. All this because they both wanted him to live close to them after marriage to which he was completely averse. The only reason they wanted him to be close to them was because they wanted to interfere more and they went out of their way to make his life miserable, not realising for once that they are slowly destroying the victims life. Yes the other son and his family were victims of their obsessive compulsive disorder. We in this society must make sure no more lives are destroyed by this mental sickness which can hit anyone. This is where we need to take help from our friendly psychologist, when the help is given on time it can save not one but many innocent lives.
A school psychologist can help many little children a mental disorder may not be as severe or as negatively destructive as the above example, there are some cases which can do very well with just a little help. A child may have an inferiority complex due to his sibling or peer pressure and a school psychologist can help him or her cope with it. Child psychologists are needed to help children overcome peer pressure and mental stress due to competition in todays life.
There are different type of psychologists like sports psychologists, clinical psychologists, child psychologists, psychologists for eating disorders, school psychologists and forensic psychologists.