I have my lifespan set to 90 days, and have had quite a few sims die of old age over the time I've played Sims. Some have only just become 90, and filled up their age bars! And other considerably long...
Thanks everyone! I was asking if I could get my Sim to literally live to an older age, and if there was a way of deciding their health and if this affected how long they lived, after their 90 days were up