What has helped relieve your HA best?

[ruuuby]

(not sure if this is the right place to post this? S: O)

so we all suffer from HA on this board, but what actually helps when you feel your most obsessive over -insert illness here-  and completely convinced your going to die from said illness ?
is there something any of you do to help distract yourself from it? or anything that makes you feel less worried about it?

i find that what usually helps is inviting a friend over and speaking about it to them, or going out with my mum to help her with her work and generally just getting back into the "real world" and less inside my own worried mind.

but what does anybody else find helpful?

[gridder]

Going to the gym
yoga
calling a friend and really listening to them
being out in public and people-watching and thinking about all the other lives out there, many worse than mine
reading self-help books
reading Buddhist teachings
and just generally getting out and doing stuff. (And getting off the computer! So I'm off!)