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DrMJoyner17 karma

Yes, there is evidence that there are neurochemical changes in the brain that give people a "high'. Most recently so-called endo-cannabanoids have been implicated.

DrMJoyner17 karma

Ed, I have been thinking about this for about 30 yrs and in that time the record has fallen 4-5 minute. Our statistical estimates say sometime in the 2030s. Could happen faster with a fast field, incentive based prize money, the right course and good cool temps.

DrMJoyner7 karma

The current trend is for younger, could be due to the financial incentives and not the physiology. Historically older was better

DrMJoyner7 karma

His 26:45 10k PR suggests that 2:03-05 is physiologically possible

DrMJoyner5 karma

Agree with Ed that he was unique talent and could have been the first. His fast time on a hot day in Beijing was amazing