<s>[INST] i have been taking 325 mg asprin since i turned 40. i am now 68 is there any risks as i take it to keep my blood on the thin side and for good general health. no doctor has ever said to stop taking it. now i read all these research reports about kidney damage is that a lot of hype. [/INST] Welcome to Chat Doctor...you are taking 350 mg aspirin ...but for what condition your doctor prescribed you this .as aspirin is a very good prophylaxis for irregular heart beat ...cardiac disease as CAD or cerebrovascular condition as TIA or PAST stroke . As these are standard cases where aspirin bis prescribed ...you may take baby aspirin of aspirin 100 or 150 mg per day .but the research papers say one thing but hide second .so better consult a doctor ...now if you have above-mentioned conditions you have to take aspirin may be 100 to 150 mg . </s>