Klotho – There May Be a Drug to Turbocharge Your Brain. Who Should Get It?
If true that it enhances healthy people, I wonder why we didn't  evolve to produce more of it? Why didn't mice?<p>Maybe side effects? Maybe being too smart is an evolutional disadvantage on an individual level or in small groups? Maybe producing the hormone is too costly?<p>Seems like too easy of a "hack" to improve such highly optimized systems such as humans or mice.