Is Strenuous Jogging Bad for You?
Tim Harford on claims that keen runners might be damaging their health. Plus tuition fees, affairs among cruise passengers, UK election safe seats and listeners' favourite stats.
Tim Harford asks whether claims that keen runners might be damaging their health are really true? Joggers will find comfort from an NHS Behind the Headlines analysis of the numbers by Alissia White of consulting firm Bazian.
Has the new tuition fees regime saved money? Newsnight's Chris Cook talks Tim through the numbers.
Is infidelity among cruise ship passengers rife?
How many political seats are genuinely safe? David Cowling, editor of BBC Political Research, looks at the numbers.
Presenter: Tim Harford
Producer: Ruth Alexander.