'I'm writing 33 birthday cards for the two sons I won't see grow up'

Point of View is an ITV News series where we invite people to share their opinion on stories and issues that matter to them.

In our latest moving episode, Joe Hammond - who has been diagnosed with motor neurone disease - explains why he is writing birthday cards for every year until his sons turn 21, and how he is preparing to say goodbye to his body and his loved ones.