Or
Enter your email address and we'll send you a link to reset your password.
To view this video please enable JavaScript, and consider upgrading to the latest web browser
For the past 35 years twins have been some of the most carefully studied people in Australia. In fact revealing the secrets of this extraordinary group of people, may just help all of us live a longer, healthier life.
Our movie and video library can only be streamed or downloaded by members only