Australian MP Andrew Robb says he would put a pen in his mouth to smile . Government Minister did so to trick his brain into releases endorphins . Mr Robb battled depression much of his life , before seeking help in 2009 . Comment:
Australian MP Andrew Robb says he would put a pen in his mouth to smile . Government Minister did so to trick his brain into releases endorphins . Mr Robb battled depression much of his life , before seeking help in 2009 . Prevention and treatment of mental illness is key , says Labor 's Anna Burke .