My mom is almost 65 and she's pretty heavy. It has got to the point where it's affecting her life quality - she often has joint pain, heart problems, clogged arteries... She has to lose weight, basically. Problem is, I feel like she has no motivation to do so. She never even tried doing it. I researched a bit online, and it seems like older people have it harder to lose weight, not just mentally, but also physically because they have less muscle mass and stuff. Is there anyone more knowledgeable on this topic?