This is a really good, helpful book. The only reason I give it 4 stars rather than 5 is that it feels a little dated in places. It was first written in 1987, and revised in 2001, so that’s perhaps not surprising. I’m no medical expert, but I doubt that the science has majorly changed since the revision 20 years ago, but a few things do make it feel dated.
As a millennial I chuckled when she (as someone born in the 1920s) wondered how we millennials would cope with some of the stressors she describes.
Perhaps a subsequent revision might be now required from someone else that factors in stress from things such as ministering in the pandemic, in a period with an explosion of social media, the various abuse scandals that have come to light recently etc etc.
In any case, if you’re involved in cross cultural Christian ministry or support those who are, get this book and read it.