NHS health checks or 'mid-life MOTs' have hit the headlines as new research claims they are a success. The aim is prevention - of diabetes, heart attacks and strokes - but their introduction has been controversial amid criticism they are not evidence based or cost effective. Resident sceptic Dr Margaret McCartney debates the issues with National Clinical Advisor Dr Matt Kearney.

And putting the family back into planning. As more couples leave it later before starting a family there is growing concern from fertility experts that many people don't know enough about when female fertility starts to decline. Professor Adam Balen and Professor Joyce Harper discuss the issues. And how accurate is the perception, often reported in the media, that fertility 'drops off a cliff' in the mid to late thirties? Professor Richard Anderson reviews the so called 'broken stick' study, a mathematical model which first defined the sharp drop off of female fertility.

And another instalment of Inside Language where Dr Margaret McCartney and Professor Carl Heneghan examine the terms used in evidence based medicine and why they matter. This week, adjustment and how researchers allow for factors that might skew their findings.