English to Persian (Farsi) Art/Literary Poetry & Literature

Hello,
How would you translate the verb "nearly 20 percent of women's vital energies" into Farsi?

They maintained that, like the "lower races," women had smaller and less efficient brains, less complex nerve development, and more
susceptibility to certain diseases, than did men. Any expenditure of mental energy by women would divert the supply of blood and phosphates from the reproductive system to the brain, leading to dysmenorrhea, "ovarian neuralgia," physical degeneracy, and sterility. Physicians estimated that "maternal functions diverted nearly 20 percent of women's vital energies from potential brain activity."

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