My Buddy Is 82 And A Bodybuilder For Years But

my buddy is 82 and a bodybuilder for years but with an afib diagnosis the dr.put him on digoxin and warfarin but he is panicking because his legs are swollen a lot he can't walk far without tiring,maybe a block,but can train in the gym with rest between sets.for years he was on aspirin up north,now in florida no mention of this from any dr.at all unheard of up here with every heart patient I have known as a teacher and medical learner.he called me in a panic what is happening to his legs etc. thank you joe madigan ,andover maine