Can a foreigner retire in Taiwan?

Could you please elaborate on the possibility of foreigners retiring in Taiwan? I'm curious to know what the requirements are for foreigners who wish to settle down in Taiwan after reaching retirement age. Are there any specific visas or permits they need to apply for? Also, what are the benefits and challenges that foreigners might face when retiring in Taiwan? Could you provide some insight into the lifestyle, healthcare system, and any other relevant aspects that might affect their decision? Thank you for your time and assistance.