Here is an introductory paragraph with 100 words talking about the key_word and higher_word in an organic way.
The busy schedules of investment bankers
500 words of detail expanding on the sub-title, using key_word and higher_word organically
The stresses investment bankers face
500 words expanding on this sub-title with key_word and higher_word
Handling the ups and downs of an investment banking career
500 more words of detail on this sub-title
A 100 word conclusion paragraph summarizing the core content with multiple uses of key_word and higher_word