Popular psychologist Dr Raj Persaud is inviting seeking participants for an online experiment designed to unlock the secrets of love.
Visitors to mi-id.com can help improve psychologists' understanding of how and why we love by answering a series of questions about their personality and relationships.
Those completing the test will also be given a rating as to how romantic they are and the type of lover to which they conform.
Dr Tomas Chamorro-Premuzic, a senior lecturer in psychology at Goldsmiths College University of London, is running the experiment together with Professor Adrian Furnham of University College London on behalf of the Daily Telegraph.
The data generated by the study could help individuals and professionals to predict problems before they arise and also to find the perfect partner, according Dr Chamorro-Premuzic.
The website will be updated with the results in the run-up to Valentine's Day.