Dementia, a progressive decline in cognitive functions such as memory, judgment, and reasoning, is primarily caused by conditions like Alzheimer's, Lewy body dementia, and vascular dementia. Ayurvedically, it's attributed to the vitiation of Prāna, Udāna, Vyāna Vāta, and imbalances in Sādhaka Pitta and Kapha, affecting intellect, retention, and memory. Ayurvedic management involves preparatory measures like Abhyanga (oil massage) and Swedana (mild sudation), followed by main therapies such as Śiro Pichu (scalp oil application), Śirovasti (medicated oil retention), Nasya (nasal medicated oils), Dhūmapāna (herbal smoke inhalation), and Vasti (medicated enema). Rasayana therapies like Medhya Rasayanas (Brahmi, Mandukaparni) and rejuvenating ghee and oils (e.g., Kalyānaka Ghṛita) enhance cognitive function. Supportive measures include a Vata-pacifying diet, meditation, and adequate rest, while avoiding stress and irregular habits.