Present participle as attributive: "improving their physical well-being" use "improving" as a present participle, modifying "their physical well-being," adding complexity and depth to the sentence.
Gerund as subject: In "staying connected with their community and loved ones," "staying" functions as a gerund, serving as the subject of the sentence, expressing specific ways elderly people use technology, adding vitality and complexity to the sentence.
Comparative form: "better now than it used to be" uses the comparative form to highlight the improvement in elderly people's quality of life, enhancing the logical structure and comparison effect of the sentence.