Sorry, we can't just "switch" email addresses since each account is linked to a unique email address. It's easy to change in 2 simple steps!
1 - Delete your account with the old email address by clicking on your profile button in the bottom left-hand side of the screen (eg. Debbie). Then scroll down and click on "Delete My Account."
2 - Now you can sign up using your new email address.
Please note: If you already created an Alpha using your old email address, please delete it first (under "Edit Alpha Details") and create a new Alpha in your new account.