The Compendium of Caraka 3.3.24_8

3.3.24_8

tatastāni prajāśarīrāśi hīyamānaguṇapādairāhāravihārairayathāpūrvamupaṣṭabhyamānānyagnimārutaparītāni prāgvyādhibhirjvarādibhirākrāntāni/ataḥ prāṇino hrāsamavāpurāyuṣaḥ kramaśa iti//

Then those bodies of the subjects, supported inadequately compared to before by food and regimen whose qualities were diminished by a quarter, pervaded by fire and wind, were anciently attacked by diseases beginning with fever. Therefore, living beings suffered a gradual reduction of lifespan.