What makes smiling such a strong symbol of emotional strength, especially when someone is hurting inside?

Why do people often focus on the perceived challenges of dealing with someone with BPD rather than empathizing with their traumatic past?
Does your mind and instincts serve you well?
Why is it important to keep a low profile and listen more than you talk in prison, and how can I practice this?
How does the constant stream of global news affect your motivation to focus on your own schoolwork?