Hello,
Nothing is sweeter than when a man or woman seeks to help another over life’s pains. Unfortunately, nothing is also more cruel when many of those same people leave it to others to do the science, while they plead ignorance or, as with the writer of the article you refer to, give misleading information. My little response is a plea for less complacency. I wrote a simple little article here that may be useful: https://medium.com/@Simplicus/you-may-want-to-do-this-before-believing-depression-is-caused-by-a-chemical-in-the-brain-f57c680e9fdf
Cheers,
Simplicus