A Tennessee interventionist explains, step by step, how to actually get a loved one into rehab: make the calls first, keep it small, what to say, and what to do if they say no.

Willow Grove Recovery recently welcomed interventionist Rich Johnston to the team. Rich Johnston once ran an intervention at a man’s own birthday party. He talks about how it actually works, what families get wrong, and why he thinks treatment has a cool factor problem. Willow...