Light - Have a job that involves long periods of sitting (office-based / driving) or are home-based and sitting for much of the day. Typical jobs: office worker, sales rep, bus/taxi/lorry driver. Moderate - On your feet for much of the day, either standing or occasional slow paced walking. Typical jobs: shop assistant, teacher, chef/cook, bar worker, engineer.

Moderately active - Do light to moderate intensity exercise 3-4 times a week. E.g. going to the gym / swimming / cycling / horse riding / dance classes / playing golf. Daily dog walking (brisk pace, twice a day). Heavy - Active for much of the day, walking non-stop and carrying objects. Typical jobs: hospital/ward nurse, waitressing in a busy restaurant, cleaner, porter, labourer/construction worker, gardener, farm worker. Leisure Activity Level Inactive - Do very little exercise, going for the occasional walk (moderate pace, low intensity). Spend majority of leisure time doing activities such as watching TV, playing computer games, on the internet, reading, cooking, driving, general household chores.