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
However, if someone is just starting to exercise, working out 2-3 days a week may be a more realistic approach. You can work out 3 days a week or it could be 6 or 7. Determine what you will be committed to long term and what is feasible for your lifestyle. Some people do better with 3 days, and some people like 5. Any range can be acceptable, as long as it is at least 2 days a week.