The researchers urged the Irish Government to follow governments in Wales, Scotland and England, and recommend that Irish people take Vitamin D supplements.
A top Tory has said he fears a hard border after Brexit could lead to a united Ireland and eventually the United Kingdom would one day only consist of England and Wales.
Joseph Brendan Dowley went missing in 1985 after boarding a bus in Kilkenny to get a ferry to Wales. It is believed that a body which washed up on the Welsh coast three weeks later was that of the father of four.
The Prince of Wales and Duchess of Cornwall will visit County Cork and Kerry this week becoming the first royals to visit “The Kingdom” since Queen Victoria’s 1861 trip.
After five years of research, a team of researchers and scientists have discovered 4,147 ancient sites across Ireland, England, Wales, Scotland and the Isle of Man.