Being on a video call requires more focus than a face-to-face chat, says Petriglieri. Video chats mean we need to work harder to process non-verbal cues like facial expressions, the tone and pitch of the voice, and body language; paying more attention to these consumes a lot of energy. “Our minds are together when our bodies feel we’re not. That dissonance, which causes people to have conflicting feelings, is exhausting. You cannot relax into the conversation naturally,” he says.