Does it depend on age, gender, environment, recently occurring condition of the person, any addiction. Thought is independent and out of control of human.
For idle mind it has been said that it is a workshop of devil.
The person who has in mind in a creative thought and activities his mind can not remain as an idle.
In other case individual remain in negative thoughts his mind work in a negative direction, disturbance an environment of the family and friend circle and in order to prepare his mind under positive actions either thru good friend or an elderly member of family he should open his mind before him and should take right tip .
If he gets a right type advice or his mind a thinking process he may take recourse to a religion or should take a advice from religious person .