Brass and bronze, an alloy made from copper and tin, have been made for thousands of years, although brass was often made by accident. Early intentional brass was actually made with calamine, a mineral which contains zinc.
As I mentioned, you should strive to lift weights 3 times a week, but if you can only make it twice, you will still get most of the benefits. 4 1. Full-Body Workouts
Well, if you have not any form of physical training for a long while and find it a pain to do so, I suggest that you start doing it 2 times a week and slowly increasing to 3 and then 5 times or more a week. You can do 10 or 15 minutes bouts of workout each time to make up a 30 minutes session a day.