There is inconclusive data regarding seasonal affected mood disorder in the third world. This is due in large part to a lack of research funds. However an interesting study has been proposed that will compare specific mental illness found in the developed world and chart occurrence of mood disorders and correlate that seasonality to see how it conforms to the global pattern

Ancient Civilizations
The Ancients’ Understanding of Celestial Dynamics through Yoga, Ritual, and Self-Study
For centuries, ancient civilizations have been fascinated with the movements of the celestial bodies, particularly the sun and the moon. They have observed the cycles