Mixing a Super Bowl of manipulation
Melissa McEwan: An anti-abortion ad, to be shown to millions during American sports' prime time, hinges upon a deliberate distortion
Male prostitution comes to Nevada
Tracy Quan: A licensed brothel's decision to introduce male prostitutes for women is controversial – but it shouldn't be
Scientists give grubby children a clean bill of health
Research in California shows children who are too clean could find their skin's ability to heal impaired
Students taught how to grow marijuana in Detroit’s new cannabis college
Horticulturalists, doctors and lawyers among instructors after Michigan legalises drug as a medicine
False positive on breast cancer
Sarah Wildman: A panel's recommendation that American women need fewer mammograms would mean more deaths from breast cancer
Working on the go
Open thread: American companies are using activity monitoring gadgets to get their employees to exercise more. Would you wear one?
Colour blindness breakthrough in gene therapy experiment
Scientists cure colour-blind monkeys, raising hopes of a cure for a range of genetic eye disorders in humans
Sharp reminder
What lessons can the UK learn from the US mass vaccination programme for swine flu in 1976, asks Peter Washer
Now you see it, now you don’t
Pictures of models and celebrities are routinely altered to rid them of every 'flaw'. So much so, that when a woman with a tummy appeared in a US fashion magazine it attracted global attention. Could the airbrushers' days finally be numbered?