Hi Mary, I'm so glad you found this great place to be, and what a great caregiver you are for your mother. It's so good that she is doing so well, having completed 21 treatments! Re her age, it's really just a number and health depends more on so many other factors that contribute to health and surviving - more so than age. So, make sure you keep Christine's suggestions in mind. Keeping records of what goes in to her body every day (and what comes out as well) will help to ensure she stays on track. When my son was recovering during radiation (at his young age), he was not always able to remember when and how much he took of meds or water so I had to make sure and write down everything and show him (he didn't always believe me!). This helps, too when you/she see the doctors and can answer their questions. Stay with us and let us know what's happening.