Sounds interesting. I will look up the link (thanks)
It is well known that patting an animal/pet actually lowers your blood pressure. And having a dog to take for a walk helps keep you on track regarding exercise.

A doctor with an understanding approach certainly gives one confidence in his ability (mind healing matter and believing in what he has prescribed - and that's how the placebos can be so effective)
Also giving the body time to heal itself often works.