Forgetting what you don’t need reduces stress because it relieves anxiety, tension, and frustration.
When you decide to buy all new furniture, what do you do? You probably get rid of most of your old furniture. Otherwise, there won’t be room for the new. The same thing is true of new ideas and new ways of doing things. Getting rid of negative and outdated thoughts prompts your thinking towards the new.
Stress is reduced when negative stuff is removed from your thinking