Doctors Chris van Tulleken and Xand van Tulleken put competing health therapies to the test with the help of thirty other pairs of identical twins - the perfect candidates for scientific comparison.
Written byLucy Bacon, Chris van Tulleken, Xand van Tulleken
CountryUnited Kingdom
Runtime30 min
On screen
Chris van Tulleken
Xand van Tulleken
Hugo Turner