If you register, you will be able to review and download your own results on future visits. However, this is entirely optional and you can choose to enter data without creating an account and providing your email by visiting the Enter Your Data tab. If you do choose to Register, your email address is required in order to register your account. It may be used if you wish to receive a new password, and may also be used by the NHM and MCS if we need to ask you specific queries about your data.