Ebola - how do they predict how it's going to spread, and why estimates have risen so rapidly.
In the UK there are 22 million prescriptions a year for morphine type painkillers, costing over 300 million pounds - but do they actually work in non-cancer pain?
And a simple blood test that can tell if your recurrent chest infections might be due to an immune problem.
Plus thyroid problems and pregnancy.
Inside Health