Interesting article. This sentence was interesting:
Very early in the process one of the scientists, Mac Hadley,[15] who was conducting experiments on himself with the peptide melanotan II, injected himself with twice the dose he intended and experienced an eight-hour erection, along with nausea and vomiting.[13]
My bodybuilder friend used to inject Melanotan II (?) and would get super tan after just a couple days of summer. He'd also get wild random erections while on it. It's an anecdote, but the post title instantly made me think of that.