Test-driven development is related to the test-first programming concepts of extreme programming, begun in 1999, but more recently has created more general interest in its own right.
Here are some tips and suggestions that can make a big improvement to your blood flow and improve blood circulation: Exercise whenever you can to boost your circulation. Get into the habit of finding activities you enjoy doing, as any type of physical activity that gets your blood pumping is good. You can walk, bike, run, swim or do anything else that you like.
1 Try going for some gentle exercise each day. This can be a walk, house work,swimming or anything that is not too strenuous to start with. Within a few weeks the improvements can be quite dramatic.  Don't go overboard with exercise, especially if your circulation is poor.