Usage of phenomenon
It could be strongly argued that this phenomenon plays a vital role in terms of human's brain power.

Does it make sense and correct grammatically, please?.

Question

Usage of phenomenon
It could be strongly argued that this phenomenon plays a vital role in terms of human's brain power.

Does it make sense and correct grammatically, please?.

Answer

Human brain power (no s)

"In terms of" is a bit convoluted.  You could consider using "for" in this case

You could also avoid the passive voice and write "We could strongly argue that..."

Answer

Pretty sure this is gramatically correct.