The definition of health:
WHO (World Health Organization) define healt as " a state of complete physical, mental and social well-being".
It is very important, that is not only absence of ache and disability.
And not only physical well-beeing. Mental and social are important too.
What is disease?
Disease is absence of one or more component of health. If one component is not in condition of well-being - it is enough to say: it is disease.
It is so easy.
It is so easy.
