If you're in employment
Despite advances in technology, many of us still spend more - rather than less - time at work. However, there are ways in which you can be more active:
Go for a walk in your lunch break. Try to find at least three different walks and vary them throughout the week. It might even be possible to find an indoor walking route, incorporating stair climbing, for those inevitable bad weather days.
Have meetings 'on the hoof'. There's no reason why one-to-one meetings with clients and colleagues can't take place while walking around the local park rather then sitting in an office. Such meetings can be an excellent way of breaking the ice with new contacts.
Talk to your employers about promoting health at work. Ask if it's possible for them to provide showers and cycle racks to encourage people to cycle to work. You might also be able to encourage them to set up a gym. Sell the idea by pointing out that doing so will improve productivity, reduce absenteeism and result in a happier and more efficient workforce.
Walk to and from work. If you live too far away, park further from the office or get off the bus or Tube one stop earlier.