27. Sam Ryder: Practising gratitude

Joe Wicks asks Eurovision star Sam Ryder what keeps him mentally and physically strong.

• 39 mins

28. Dr Matt Walker: Why we sleep

Joe Wicks asks scientist Dr Matthew Walker why sleep is so important for our health.

• 45 mins

29. Dr Julie Smith: Train your mind

Joe Wicks speaks to Dr Julie Smith about how to understand and train our minds.

• 38 mins

30. The Happy Pear: Stacking habits

Joe asks Stephen and David Flynn about the importance of movement and getting outside.

• 41 mins

31. Tom Kerridge: passion and purpose

Joe Wicks asks chef Tom Kerridge what keeps him mentally and physically strong.

• 33 mins

32. Nadiya Hussain: Living my dream

Joe Wicks finds out what keeps TV baker Nadiya Hussain mentally and physically strong.

• 33 mins

33. Jeremy Lynch: Enjoy the journey

Joe Wicks finds out what keeps Jeremy Lynch physically and mentally strong.

• 40 mins

34. Caitlin Moran: Being my own pet dog

Joe Wicks asks the writer Caitlin Moran what keeps her mentally and physically strong.

• 44 mins

35. Katie Piper: Endure the tough times

Joe Wicks finds out what keeps Katie Piper physically and mentally strong.

• 39 mins

36. Christopher McDougall: Born to run

Joe Wicks asks the author Chris McDougall what keeps him mentally and physically strong.

• 38 mins