An on-and-off switch for the brain being pioneered by Australian neuroscientists is giving hope to stroke and Parkinson's disease sufferers with speech problems.

A woman who had a breast erroneously removed wants an urgent review of NZ's diagnostic laboratories.

Clown doctors are now a staple part of treatment for young patients at Auckland and Christchurch – and soon Wellington – hospitals.

Ben Carson makes a difference in and out of the operating theatre, reports Andrew Stone.

In this new series Herald reporters try out alternative relaxation and remedies