The food of the north, through stir-fries and noodle-based soups, shows the heavy influence of Chinese cooking.
And of course, it’s not a secret that women in their thirties and forties have a much higher sex driver than the ones in their twenties.
Thousands of years later, when some of these Himalayan Rivers became non-perennial or started drying up, some of these people started moving towards Central Asia and Europe.
As per ecologists this ecological cycle has been repeating itself and will get repeated after every ice age and during the beginnings of all Holocene cycles.
The beginning of the Holocene (post last ice age) is now universally accepted to be around 12000 BP.
Consequently the civilizations of the world naturally and simultaneously started developing near the rivers which initially started flowing due to the melting of glaciers near the Equator e.g. When populations multiplied, these river waters became insufficient.
Therefore some people started travelling from south to north.