Knowledge: Stephen Hawking's "A Brief History of Time" is fascinating body of work that has contributed to our understanding of the universe. Beard growth is linked to the stimulation of hair follicles in the area by dihydrotestosterone

Conversation:
Do you know it is believed that people with beards are extremely smart.
That's interesting. Apparently, only adult or pubescent males can grow them.
Hmm! That's fascinating. So how does it work?

Response: Beard growth is associatied with the activation of hair follicles in the area by dihydrotestosterone