1. Stretch regularly, Yoga and Pilates are brilliant to improve your posture, the better you move, the better your posture and the less problems you will experience. If you feel tight in one particular area or are not sure where you are moving incorrectly then your teacher (yoga/pilates) or manual therapist (e.g. Chiropractor) can help you.
2. Correct you ergonomics at work, if you sit at a desk for long periods at work for example then make sure you ergonomics are perfect. A lot of companies will assess this for you, however make sure it is kept up to date as it is very important for your posture and to prevent injury.
3. Take regular short breaks, if you have to stay in one place for a long period of time (e.g. sitting down) make sure you take a break and move about for at least 5 minutes every half hour. This will allow the structures within your body to recover from a prolonged period of stress in one position which can lead to poor posture.
4. Drink lots of water, staying hydrated keeps your muscles and joints supple and strong preventing your body from getting lazy and adapting a poor posture.
5. Feel free to fidget! Fidgeting is your body telling you that you need to move to get comfortable, listen to your body. If your body needs to move to be comfortable then let it be comfortable, just don’t let it be comfortable in one position for too long ;-).
Always remember, keep moving and stay loose, keep your back straight when bending and use your knees! For more advice, contact me at firstname.lastname@example.org