Andrew Huberman· PhD
So, all of this is to say is that chemical-chemical signaling is happening from females to males through tears, we know that. Is that a pheromonal effect? Well, by the strict definition of a pheromone, a molecule that is released from one individual that impacts the biology of another individual, yes. But in terms of identifying what the pheromone is in tears, that's still unknown, it's not clear what the chemical compound is.