Cancer is the general name for a group of more than 100 diseases. Although there are many kinds of cancer, all cancers start because abnormal cells grow out of control. Untreated cancers can cause serious illness and death.
This idea was called separation of powers. This philosophy heavily influenced the writing of the United States Constitution, according to which the Legislative, Executive, and Judicial branches of the United States government are kept distinct in order to prevent abuse of power.
The Constitution defines the powers of each branch. Article I defines the legislative, or congress. Article II defines the executive, or presidency. Article III creates broad outlines for the judicial, primarily the Supreme Court. Article IV defines the relations between the states and the federal government.