Mark Bellis is the Director of Policy Research and Development for Public Health Wales. As police across the country prepare to crack down on drink-driving this Christmas, he urges people: "Moderate your alcohol intake - and remember your Christmas for good reasons, not bad ones."
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Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.
North Wales Fire and Rescue Service say incidents of deliberate fires are more common during the school holidays.