Your username is always your email address (all lowercase). If you've taken a HealtheKnowledge course before, as long as your login has been used within the past six months, it will still be active and you can get your password reset by clicking on the "Forgotten your username or password?" link.
If the email/username is active in our system, you should be sent a password reset email within fifteen minutes. If you don’t receive one, please contact us through the support page for a manual password reset.