Here are some of the people already challenging themselves to make a move.
Whatever the weather, the Breakfast presenter is taking on the Couch to 5K challenge.
This Radio 1 presenter is full of beans for the Tea Time Toning challenge.
He can sing, he can farm, now the Cbeebies presenter is learning the Splits.
He can judge a balanced dish, but can Tai Chi balance the mind and body of this chef?
30, Cheshire (via Newcastle), Taste of Tai Chi challenge
55, Lewisham (via Oxford, Sydney & a few other cities), Handstand challenge.
33, Oxfordshire, Couch to 5K challenge
47, South Yorkshire, Feel the Beat challenge.
19, South Shields, YMCA A Day challenge
Manchester, Speed Stacking Challenge
44, Yorkshire, Take a Hike challange
23, Ipswich (via Chelmsford), Couch to 5K challenge.
38, Watford (via Sweden & London), Anywhere Yoga.
45, North Yorkshire (via Alberta, Canada), the Splits challenge.
36, West Midlands, the Skipping challenge.