I think most ppl think that about yoga and meditation, like they can't do it after a little bit of trying because they can't slow their mind down. But that is what learning how to meditate does! Someone doesn't just sit down and voila' they "do" mediation first time trying.
It is a learning process.. .that's the whole point, you work on learning how to do it because you need to slow down your mind and thoughts.

It does take practice, but it is the cheapest alternative therapy going...and it does work!
TC