ɐlˈɔŋ wɪð hɪz θˈiəɹi ʌvðə ɹˈoʊl ʌv vˈaɪɾəl hˈiːt ɪn njuːtɹˈɪʃən ænd daɪdʒˈɛstʃən, ˈæɹɪstˌɑːɾəl bᵻlˈiːvd ðæt vˈaɪɾəl hˈiːt plˈeɪd ɐ ɹˈoʊl ɪn ɹᵻpɹədˈʌkʃən wˌɪtʃ ɪŋklˈuːdz sˈɛvɹəl fˈɪzɪkəl pˈɑːɹts ʌvðə bˈɑːdi dˈɪfɹənt fɹʌmðə pˈɑːɹts ðæt pɑːɹtˈɪsᵻpˌeɪt ɪn njuːtɹˈɪʃən.
Along with his theory of the role of vital heat in nutrition and digestion, Aristotle believed that vital heat played a role in reproduction which includes several physical parts of the body different from the parts that participate in nutrition.