If you wish to change your email address, you'll first need to login to your profile.
1. Click account settings under your profile name. You'll find this in the top right corner of your screen.
2. Under My account settings click change next to Email Address to update this information.
3. Type in the new email address you wish to use. Click update email when you're done. An email will be sent to your new email address confirming this change.
If you have any questions about this feature, please feel free to contact Support here.