Aristotle said politics is the study of how communities can achieve “the good life” through governance and organization. He said we are political animals (zoon politikon) who naturally form communities, such as the polis (city-state), to achieve common goals and virtue.
The idea that any human action is political cannot be attributed to Aristotle. It is also a silly and amateur assertion — to breathe is not political, to think is not political, to eat is not political, etc.