australian mp andrew robb bravely revealed one of the unusual methods he used for more a decade to stave of depression .
the minister for 10 years , i drove to work with a pen in my mouth because someone told me if your face is configured like you 're smiling , your brain thinks you are and it releases endorphins , ' he said .
` for the last four years i 've had better days than any days for the 43 years before , ' ms burke said .
` for the last four years i 've had better days than any days for the 43 years before , ' mr robb said .