How important is willpower?

Can I get better at doing difficult things? Chris and Xand van Tulleken want to know.

• 28 mins

Doctors' Notes: Hanger

Chris and Xand dig deeper into hanger, exploring the politics of hunger.

• 15 mins

Am I hangry?

Can you be hangry? Chris and Xand van Tulleken’s stomachs are rumbling to find out.

• 29 mins

Doctors' Notes: Knees

Drs Chris and Xand discuss exercises that can help with chronic knee pain.

• 20 mins

How can I look after my knees?

A pain in the knee. Can we do anything about it? Chris and Xand van Tulleken find out.

• 29 mins

Doctors' Notes: Testosterone

Drs Chris and Xand discuss how  testosterone interacts with other hormones.

• 19 mins

Do I need testosterone?

Drs Chris and Xand ask - what are the pros and cons of testosterone replacement therapy?

• 28 mins

Doctors' Notes: Sleep

Drs Chris and Xand Van Tulleken explore the difference between sleepiness and fatigue.

• 25 mins

Am I getting enough sleep?

How worried should we be about lacking sleep? Drs Chris and Xand van Tulleken investigate.

• 28 mins

Doctors' Notes: Fresh Breath

Drs Chris and Xand Van Tulleken explore the causes and effects of gum disease.

• 24 mins

How can I freshen my breath?

Drs Chris and Xand van Tulleken want to know what they can do about bad breath.

• 28 mins