take it easy or take things easy
[British] to relax and not worry, hurry, or do anything that needs a lot of energy
You can prolong your cold by working too hard or exposing yourself to stressful situations. So keep cool and take it easy for a couple of days, then you'll be back in action faster.
[mainly US] an informal way of saying `goodbye'
`Thanks. See you later.' `Take it easy. Don't do anything I wouldn't do.'
Easy Learning Idioms Dictionary. Copyright © HarperCollins Publishers