Join a current study

Are you a twin or triplet? A very precious gift that only you can give is the donation of your time to a twin study. By participating in twin studies, you'll be helping researchers to better understand what contributes to our health and happiness.

Below are our latest studies seeking twins and triplets. You'll find there are many ways to get involved - and often it is as simple as completing a questionnaire but this can be invaluable to research.

If you are interested in any, please click on the individual study link. We'll get back to you with further details. If you'd like to be alerted when a new study begins, please contact us. TRA and our researchers appreciate your time and interest.

Exercise and Training Twin Study

Many studies have shown that exercise has many beneficial effects in terms of preventing heart disease, cancers, stroke and dementia, it is clear that some people respond to exercise more than others.... Read more >

Singing study: The nature and nurture of singing ability

Many studies have shown that singing is good for us. By understanding the genetic and environmental influences on singing, the researchers hope to help everyone (twins and non-twins; young and old; go... Read more >

Children of Twins Study

This project aims to explore the impact of parental mental health on child mental health outcomes. Twins Research Australia members and their biological children will be invited to participate in this... Read more >

TANDEM study (juniors)

This project is investigating how temperament develops over time, with a particular focus on the period of late childhood through to mid-adolescence. It aims to investigate temperament by looking at w... Read more >

Older Australian twins study: amyloid imaging (adults)

A known predictor in brain ageing is 'plaques' which contain the amyloid protein. It is not known however what causes these plaques or who is at risk of developing them. This study aims to take brain... Read more >

Breast cancer (adults)

This project aims to understand better the roles of childhood, adolescence and epigenetics in the risk of breast cancer. Epigenetics refers to changes in the way genes operate due to environmental cha... Read more >

Atrial Fibrillation (all ages)

It is believed that inherited heart defects can predispose sufferers to AF but what genes are involved and the way in which changes in these genes can lead to AF are not well understood. The researche... Read more >

Menopause and bone health (adults)

The purpose of the study is to understand how bone structure changes during menopause and how hormonal factors contribute to bone loss and bone fragility. What is involved? A short questionnaire ove... Read more >

Genetics of speech disorders (juniors)

In an exciting new development, researchers from the Florey Institute of Neuroscience and Mental Health and the University of Melbourne have identified a single gene specific to speech and language di... Read more >

Sleep trial study; low back pain (adults)

This project will investigate the value of a sleep quality program in people with low back pain and insomnia. What is involved? An initial screening questionnaire to assess eligibility. Eligible par... Read more >

Health and Lifestyle Questionnaire (all ages)

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 ... Read more >

Twins Research Australia

Address: 3/207 Bouverie St
Carlton, Vic 3010

Freecall: 1800 037 021


ABN: 84 002 705 224

Twins Research Australia is a national resource supported by a Centre of Research Excellence Grant from the National Health and Medical Research Council and housed within the University of Melbourne.

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