Today is your last chance to grab a free lunch from the Run For Your Bun cafe in Covent Garden.
The pop-up offers customers a free dish if they first take part in a six minute micro-workout.
The cafe is part of a campaign to encourage people to be more active during the working day.
One woman sparring at Miguel's Boxing Club in Brixton told London Tonight that the sport suited her lifestyle as a mum.
Heather Christian said it fitted in around other commitments and provided a good outlet for stress.
When Leanne Spencer stepped into the ring, she found she loved it so much that she quit her job in the City to become a personal trainer.
Sarah Trevett from Miguel's Boxing and Fitness Gym says they've seen a massive surge in interest from female customers: