How much physical exercise?

Any exercise is better than none, If you are aged between 19-64, guidelines say you should do about 150 minutes of moderate exercise a week, broken up into chunks, so you should be able to tailor things to your own personal lifestyle and commitments. Moderate exercise could include such things as:

If you haven’t done any exercise for some time, then it’s advisable to build up your workout routine over a period of time, taking advice from your GP as necessary if suffering from any other underlying conditions.