Red Nose Day is back on Friday 18 March and this year we're challenging the nation to run 50 miles in March in return for donations (and hot, sweaty high fives), of course.

The Big Red Nose Day Run Together is your chance to make your miles matter. Whether you run, walk, jog or plod, every step has the power to change lives.

With your help, Comic Relief is committed to ensuring people in the UK and across the world have a safe place to be; helping children survive and thrive; fighting for gender justice so women and girls live free from violence, fear and discrimination and supporting people with their mental health.