" Our facial expressions are hardwired5 into our emotions: we can’t have one without the other. Botox lessens depression because it prevents us from making sad faces. But it also dampens our connection to those around us because we feel empathy by mimicking each other’s facial expressions. "

― Steven Kotler , Stealing Fire: How Silicon Valley, the Navy SEALs, and Maverick Scientists Are Revolutionizing the Way We Live and Work