There’s a phenomena called brain drain. It’s where people from less developed places be it countries or cities emigrate toward large cities. The reason is that after they’re educated there are a lot more job opportunities for educated people that pay better, and also more social opportunities.
I believe the answer is: 79 million.
The high risk of diabetes is strongly related due to the growth in both fast food, mobile devices, and social media industry.
The combination of unhealthy high sugar diet combined with less physical activities increase the likelihood of this disease even on younger age.<span />