This setting gives the ability to control how often you are getting coaching tips about yourself and teammates sent via email.
Coach Tips emails can be sent at the following frequencies:
Weekdays (5 days)
Mondays and Thursdays (2 days)
How to update your coaching tip settings
Click on your avatar in the top right corner to open your Account settings
Select the "Notifications" tab and change the frequency to your preference.
Check out these other help articles:
How to Change Your Privacy Settings
How to Edit Your Account Details
How to Upload Your Avatar