Implanting Bill Gates's Micro-chips In Brains For Over 20 Years!

[Icky Thump]

Originally Posted by sebastian_dangerfield

Working the upper body along with lower positively stresses the cardiac system better than just lower when done right (rowing), and stresses it quite negatively when done wrong (heart attack while shoveling heavy snow).

Reminded me- kick boxing does it for me. Rowing, maybe I am doing it wrong but my heart rate goes to like 90 when I do it.