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
20- 30 minutes of cardio every other day is plenty if you weight train. I have a hard time doing ten minutes of cardio to be honest, I dont care for the tradtional cardio and would much rather lift weights:) Cardio can be done on separate days from weights as well.