Shingles vaccine; Energy drinks; Liver function tests; Anorexia

Margaret McCartney reports on confusion around the new Shingles Vaccine - including how old you have to be to qualify and why there's a lack of supply in some GP surgeries.

Why readymade drinks combining caffeine and alcohol have been banned in America.

Are the tests GP's use to screen for liver damage falsely reassuring?

And a leading authority dispels myths surrounding the causes of anorexia.