Health in youth is more bad because youth is the only age of a person's life in which a person gets a lot of depression and a lot of stress because even after working hard, when there is no success, then a person falls into wrong activities starts smoking cigarettes and many other such things then it is better that if we want to live a good life then we have to work hard then we will be able to live a good and healthy life.
A lot of people fall into depression and it messes up with their minds which affects their progress in life. We need to take care of our mental state too.