Your physician or General practioner can also take blood; if your crit is up; you can ask them to do it or the can give you a referral to the Blood collection places; I have done this many times, you don't have to use the hospital ir red cross; because im always in the middle of tattoo's I cant use them anyway. I think every man should be using baby asprin as well. There are copious studies indicating much benefit, including sone related to resistance training