If this is in fact true, then I'm sure language plays a part; but, I'd bet that there's a financial component, too.
There are about 50 countries that have a Muslim majority. Generally speaking (and contrary to the "oil-rich" stereotype), many of these countries are extremely poor on a per capita basis. There are a handful of exceptions: Saudi Arabia, U.A.E., Kuwait, Oman, Bahrain, Qatar, and Brunei. Outside of those, you'll find mostly four-figure (i.e., less than $10,000/year) and plenty of three-figure (i.e., less than $1000/year) per capita GDPs. For comparison, per capita GDPs in the U.S., U.K., Australia, and Scandinavia (which is what we see a lot of here, right?) are in the $35,000-$50,000 range.
Quality of, and access to, all health care (and especially mental health care) increases as wealth does. This is easy to see even within countries. People struggling to meet basic human needs do not see mental health professionals.
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Put the curse of loneliness on every boy and every girl,
Until everybody's kickin', everybody's scratchin',
Everything seems to fail ?
And it was all for the want of a nail.