If it must be economical and practical, I'll give you some suggestions:
1. VCD for studying in Tai Ji Chuan. Life lies in exercise, Tai Chi is very soothing, and it is a form of exercise suitable for middle-aged and elderly people. After practicing "getting started", there will be amazing fitness effects.
2. A health-keeping cookbook. Let your mother see that it is fun to eat, and it also has a health-preserving effect ~ it is an important health-preserving condition to develop correct living and eating habits.
Always buy fresh fruits and vegetables for my mother. Always buy, don't buy too much at a time, eat fresh vegetables every day, and don't eat things that have been left for a long time (mildew and the like are even more inedible, so you must throw them away, which will cause cancer).