Beta blockers are usually prescribed for heart problems, but what they actually do is block boosts of adrenaline. That can help people with anxiety, because anxiety manifests as an adrenaline boost when trying to do certain things, leaving them shaky and nervous. If someone is anxious about speaking in public, or talking to new people, etc, beta blockers help with that a lot. They’re a game changer for people with social anxiety.

A psychologist can a psychiatrist can’t.

A psychologist is a proper medical degree. People confuse the two terms and use them interchangeably though.