We should all aim to do 150 minutes of moderate exercise per week; this is the same as 20 to 30 minutes per day. To help us do this, the NHS has two apps. ‘Active 10’ measures your activity when you’re walking, and ‘Couch to 5k’ is a programme designed to get you running for 30 minutes by the end of a nine-week programme. https://www.nhs.uk/better-health/get-active/
