Many diseases in modern society are caused by the unresponsible behaviour of humans themselves, therefore, those who choose to live in an unhealthy way should be held responsible for their decisions. This essay agrees with this view and two main reasons in support will be outlined: the more the diseases are, the bigger the spendings for healthcare are; an increasement in taxes for health will have a detrimental effect on some risk factors, such as cigarettes, alcohol, junk food, and etc.