<i>&quot;Brazenly, he sampled a few drops of this extract himself&quot;</i>[1]<p>These days if a researcher dared confess that he tried some research compound on himself he&#x27;d be charged with loss of objectivity, or be considered crazy or just plain weird.  But not too long ago self-experimentation by researchers was quite a common and accepted practice.  It could even be considered the ethical thing to do: before letting the compound be tried by others you should of course try it yourself.<p>There&#x27;s a book on the history of self-experimentation in medicine, called &quot;Who Goes First?&quot;[2]<p>[1] - &quot;he&quot; being Justinus Kerner, &quot;the first scientist to publish an accurate and comprehensive description of the disease&quot;<p>[2] - <a href="https:&#x2F;&#x2F;www.amazon.com&#x2F;Who-Goes-First-Self-Experimentation-Medicine&#x2F;dp&#x2F;0520212819&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.amazon.com&#x2F;Who-Goes-First-Self-Experimentation-M...</a>