I have no problem living past 75, if I am not burdening anyone with dementia, alzheimers, or some other disease. I guess I look at my parents that just turned 70 and they are so healthy, having a great time in their life traveling. But my mom and I always joke and say, If I get Alzheimers and have no idea what's going on, just give me that pill that makes me go to sleep.. for good!