Present continuous tense: "is developing" and "is improving" are two expressions that use the present continuous tense, indicating that the improvement of technology and healthcare is an ongoing process, demonstrating the dynamism and timeliness of language.
Subordinate clause: "as the population of many countries starts to get older" uses a subordinate clause to provide a reason or background, explaining why more countries are considering this issue, increasing the complexity of the sentence.
Passive voice: "to be able to get help" uses the passive voice, emphasizing that people hope to receive help, rather than who provides the help, showing the complexity of sentence structure and the accuracy of language.