What happens to your brain without any social contact? – Terry Kupers Learn On Youtube TED-Ed — September 21, 2025 · Comments off Source Link animation anxiety brain brain health brain imbalance Camille Bovey charles dickens chronic stress cognition depression education fear response focus hallucinations identity insomnia isolation limbic system memory mental health mental illness prefrontal cortex prison prison populations recidivism sleep social community social interactions solitary confinement solitude stress stress hormones stress response TED Ted Education TED-Ed Teded Terry Kupers