More often than not, a doctor can mean the difference between life and death. People who suffer serious injuries need a doctor to attend to them quickly because delaying treatment might turn out to be fatal. Doctors are responsible for increased life expectancy and improved well-being in society. People who survive diseases such as cancer usually owe their survival to doctors, whose skills and dedication are vital for their cure. Modern medical technology coupled with doctors’ care can give persons diagnosed with terminal illnesses a hope of living longer.