Fy ngwlad:
 Colourful rows of terraced houses in the Rhondda Fach, a former coal mining valley in south Wales.

Why ‘deaths of despair’ are higher in former coal mining communities

Mae'r erthygl hon gan Dr Christopher Saville, Uwch Ddarlithydd Clinigolwedi ei ail-chyhoeddi o The Conversation o dan drwydded Creative Commons. Darllenwch yr erthygl wreiddiol yma. 

Hawlfraint llun: Simon R B Brown/Alamy