You burn 50 more calories an hour when standing than when sitting.
It's never too late to start. Whatever your age, being active will help you keep healthy.
The more active or fit you are the lower your risk of heart disease.
Physical inactivity is a major health risk and one of the main causes of ill health in the UK.
Adults need to be active for at least 150 minutes each week. Try to be active every day.
Sitting down for hours - at work, watching TV or playing on the computer increases your risk of poor health.
Finding ways to reduce time you spend sitting can be your first step to being more active.
Walking is the perfect exercise: it's free, convenient and easy!
Being active can help you sleep better, have more energy and feel more relaxed.
Almost 8 out of 10 adults believe they are active enough to benefit their health, but the truth is only 4 out of 10 men and 3 out of 10 women are active enough.
Getting started is easier than you think. Changing a few daily habits can soon add up to a more active lifestyle.
The more physical activity you do, the greater the benefit.
Spending too much time sitting puts your health at risk.
Move more, sit less. Sitting for long periods is not good for health so build in breaks when you stand or move.
Did you know that you burn the same amount of calories if you walk a mile as you do to run a mile?
You can expect to see short-term benefits within weeks of starting to be more active.
The benefits of physical activity far outweigh the risks of getting hurt, so doing a little is far better than doing nothing.
Physical activity can help prevent and manage a variety of health conditions and improve how you look and feel on a daily basis.
The potential benefits of physical activity to health are huge. If a medication existed that had a similar effect, it would be regarded as a wonder drug or miracle cure.
Chief Medical Officer, 2009