the way you feel and what u think about yourself
Explanation:
i think everyone has personal bias
Let's say you enjoy swimming. One day you decide to swim alone. But it's a risky idea because you could drown and no one would be there to help you in time. So it's best to have others around incase you have an accident or need help.
Actually many types! If we talk just about hospitals and clinics we still find a variety of types. Main type though is modern medicine based on latest research and development. Also another popular type of medicine practiced today is based on natural remedies, plants, natural products and specific physical exercise.