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
The optimal number of days to lift weights per week ultimately depends on your goals and your schedule, but planning your training sessions ahead will allow you to get the best possible results for you. The best number to shoot for is three days a week, with two as a minimum and four as a maximum.