Doctors Chris and Xand van Tulleken put competing health theories to the test with the help of 30 other pairs of identical twins.
Episode 1
This episode tests the best way to lose weight, improve memory and beat pain without pills.
Episode 2
Twins test the best way to beat fatigue and discover the effect of smartphones on IQ.
Episode 3
This episode explores the best way to get fit, beat nausea, and discovers if you can enhance brain performance.
Episode 4
Twins find out if its possible to get a better brain, repel mosquitoes and get fit just by watching TV!
Episode 5
Identical twins put health theories to the test. Twins test the best way to kick a habit, see if hand-washing keeps you healthy and try to improve concentration.
Episode 6
Identical twins test the best way to learn a new language, attempt to look younger and test an easy way to lower your calorie count.