Dywed Prif Swyddog Meddygol Cymru, Dr Frank Atherton, mai’r allwedd i newid parhaus yw cael cefnogaeth, gan ffrindiau a theulu neu gan y rhaglenni niferus sydd wedi’u cynllunio i helpu.
The Chief Medical Officer for Wales, Dr Frank Atherton, says the key to lasting change is to get support, whether from friends and family or from the many programmes designed to help.