Joseph kept thinking about the argument he had the day before. he found himself feeling more and more worried that he had spoken too harshly, replaying the conversation over and over in his mind, thinking about what else he might have said. he is engaged in something called question 10 options: dejection. rumination. depression. mental motion.

He is engaging in something called "rumination".

Rumination is a sort of fanatical over-thinking in which an individual will rationally replay a past negative occasion over and over however gain no genuine ground toward goals. It is like stress in that an individual will fixate on the potential causes and outcomes of an occasion; be that as it may, stress is identified with future occasions, while rumination is identified with the past.  

Rumination can be turned off by two great strategies: 1) escape the negative neural systems and 2) handle one issue at any given moment with arranging.

the first part is ocean

explanation: