Mellow out and Sit down

Mellow out verb - To get rid of nervous tension or anxiety.

Sit down and mellow out are semantically related in take a short break topic. In some cases you can use "Sit down" instead a verb "Mellow out".

Sit down verb - Take a seat.

Mellow out and sit down are semantically related in take a short break topic. Sometimes you can use "Mellow out" instead a verb "Sit down".