Okay, my grammar still sucks. But anyway, let's talk more about form, in language as in life. In my 20s I had injured myself several times, from lifting and ru

Okay, my grammar still sucks. But anyway, let's talk more about form, in language as in life. In my 20s I had injured myself several times, from lifting and running around Ann Arbor. After one extreme and almost paralyzing injury I went to a neurosurgeon. The neurosurgeon gave me the choice of surgery or strengthening my core and perfecting my form in exercises going forward. Fancy exercise stuff is cheaper than surgery. Strictly speaking the best exercises are all completely free. There are a lot of comments here smirking about bikes that go nowhere, etc. If you think a stationary bike is "unnatural," pounding pavement does not seem all that different. The point is good form. There are many rivers to that ocean.