Published Thursday, 20 December 2012
Mental health issues can come to the fore during the festive season, and can be brought on in part by increased alcohol consumption, the PHA said.
Seamus Mullen from the organisation encouraged people to look after their own welfare - and also look out for the telltale signs that someone they know is experiencing problems.
"It is the season of peace and goodwill and basically what we at the Public Health Agency are saying is we should look out for friends and family, as well as ourselves," he told UTV.
"We feel that people, despite being surrounded family could still feel isolated and lonely and perhaps as a result of losing a family member through the year.
"The signs can be if people don't seem to experience or enjoy things they once enjoyed, or it could be mood swings, becoming very isolated in themselves."
Some of the advice the PHA is offering includes making time for family and friends, giving and accepting support and avoiding excessive or binge drinking.
Mr Mullen said just talking can help, but it's important to act quickly.
"The earlier they seek help the better," he continued. "It's not necessarily through a medical professional, what people should do is speak to a family member or friend at least once a week.
Lifeline telephone: 0808 808 8000
"That can be very helpful."
© UTV News