Couples who fight and go to bed are likely to wake up with a bad mood. This effects his/her work at the office too. After a fight, there is a high activity in the brain. This makes people upset and restless the next day.
People in such a case are likely to be in a bad mood, continue to mull over the argument in their heads, and turn to alcohol or drugs.
It is a good idea to make out before going to bed as it refreshes the brain and wakes you up with a good mood the next morning. The outer region of the brain is relaxed and thus it is easy to concentrate at work.
Everybody feels miserable after having a row with their partners. The day after, a agitated brain makes things worse. However, a good sex with your partner before going to bed is the key to a good day.