The Health and Lifestyle Questionnaire will be used to help research. It is a questionnaire developed for TRA members and asks about a range of topics including members’ background, health conditions and lifestyle information. Invitations to complete the Health & Lifestyle Questionnaire will eventually be sent via email to all current TRA members where both have a valid e-mail address (or to the contactable parent's email address for junior twins).

What is involved?

It is an online survey which will take approximately 30 minutes to complete.

Who is eligible?

All adult twin pairs, aged 18+ years and able to complete an online questionnaire, are eligible to participate. For junior twins, all parents with twins aged over a year old are eligible. If you would like to be involved, please This email address is being protected from spambots. You need JavaScript enabled to view it..