Should I avoid taking antibiotics?
Luisa Dillner: It is OK to take them, but only when really necessary, and for as long as directed. And never reuse antibiotics you have been prescribed previously
Self-tracking: the people turning their bodies into medical labs
As well as helping to track finances and organise social lives, smartphones are encouraging some people to monitor their health and wellbeing. Tim Lewis reports
The man whose brain ignores one half of his world
A stroke left Alan Burgess with hemispatial neglect – an inability to pay attention to sensory stimuli on his left side
Yawning in womb could be used as baby health indicator
Scans show frequency of action, thought to be linked to growth of nervous system, drops as birth date nears if all is well
Should I do more to avoid catching a cold?
Luisa Dillner: Zinc might help, but there's no evidence that vitamin C or echinacea will ward off a cold. Your best bet is to keep washing your hands thoroughly
Cancer can teach us about our own evolution
Paul Davies: By asking ourselves why cancer might exist, we can get a glimpse of life in a bygone biological age
Spitting Blood: The History of Tuberculosis by Helen Bynum – review
A biography of the disease is also a call to arms. By Richard Horton
IQ research prompts warning over drinking alcohol during pregnancy
Study finds children of women who drink between one and six units a week had fewer IQ points at eight years old than peers
Dr Dillner’s health dilemmas: Should I take part in a clinical trial?
Medical research benefits from these tests, but find out as much as you can before getting involved