A robot includes a robot main body section including a base and a robot arm coupled to the base and including a sealed internal space, a driving section provided on the inside of the robot arm and configured to drive the robot arm, a control board provided on the inside of the base, a power supply board provided on the inside of the base and configured to supply electric power to the control board, a driving board provided on the inside of the robot arm and configured to drive the driving section based on a signal from the control board, a fan configured to stir gas on the inside of the robot main body section, and a heat sink provided on the inside of the base.