Back pain is very common and affects people of all ages. Most people experience lower back pain at some point in their life. Around 1 in 6 Australians have back pain each year. Back pain can have a significant impact on all aspects of life including daily activities, family life, work, recreation and social activities. Common causes of back pain include: repetitive or heavy lifting, sudden awkward movement, lack of physical activity, poor posture, being overweight, stress – muscle tension.