Take it further
Got a passion for science? Find out about studying science at The Open University.
Unzip your genes
Try our quiz to determine whether common traits are hereditary or influenced by the environment.
Discover the elements
We're putting the final touches on a new way to look at the elements of the Periodic Table. Learn about the role of elements in the human body
Challenge your ears
Have you tried: The Shepard Tone illusion?
Bang on TV
Bang Goes The Theory can be seen on BBC One (England) and BBC Two (Scotland and Wales) on September 5th at 7.30pm. Full schedule and iPlayer links are on bbc.co.uk. Read more about the current series.
This week, the team puts more science to the test. Liz Bonnin investigates new stem-cell research that could change the face of organ transplant surgery, Dr Yan Wong tries out the Nocebo effect (placebo's evil twin), and at a memory boot camp Dallas Campbell discovers how to remember where he left his keys.