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
If you can only lift with a frequency of 3 days a week, your training volume will need to be relatively high. Conversely, if you can hit the weights 6 days every week, youâll want to tone down the number of sets youâre using to train a given muscle group during each of your training sessions.