What are some of the most critical health concerns we face in the 21st century,

What are some of the most critical health concerns we face in the 21st century, and why?
Must be typed out (handwritten answers will be rejected and result in an immediate decline of your application)
Between 200 and 500 words
Must be free of plagiarism, including any text generated by artificial intelligence such as ChatGPT
Proper grammar practice and no spelling mistakes
Failing to meet our quality standards will result in your application being rejected
At least one example of correct use of all of the following:
Commas
Colons
Semicolons
Exclamations
Quote Marks
Apostrophes
Parentheses
Dashes
Hyphens
Citation in APA format (at least one resource)