The primary use of dextromethorphan is as a cough suppressant, for the temporary relief of cough caused by minor throat and bronchial irritation (such as commonly accompanies the flu and common cold), as well as those resulting from inhaled particle irritants.
As of Q4 2016, South Korea had the fastest average internet connection in the world at 26.1 Mbit/s according to the report State of the Internet published by Akamai Technologies. South Korea's speed is almost four times faster than the world average of 7.0 Mbit/s.
Why is South Korea's internet speed so fast? Based on the below article in the Huffington Post from last year, South Korea is ranked number 1 in the world with an average speed of 17.5 mbps and the largest increase in speed year-over-year (+4.7%). I'm just curious as to what makes their internet speed is so much faster than everyone elses?