The crafty professor

When he helped a 60-year-old woman get pregnant, Ian Craft became Britain's most controversial IVF doctor. Now he's back in the news again. Dea Birkett meets him.

Trial and error

Medical research needs human guinea pigs. But the news this week of patients irreversibly damaged by a new treatment for Parkinson's disease has highlighted the risks. When is it worth it? Sophie Petit-Zeman reports.

Reality blues

You've got your degree - so what next? For many the loss of structure is a passport to depression, says Lyndsey Winship