The email address you used to join Radar or create a workspace is where we will send you all notifications, alerts, and reminders. This is also where you will receive other important information relating to your account, such as links to reset your password, so it is important to keep it up to date.
You can change the email address in the My Profile section (click the man button for that) in one step. Just enter the new one and use it the next time you log in.
