Martin McEvilly (not pictured) is Ireland's oldest man at 108 years old. He was still cycling everywhere at the age of 99.Westend61/Getty Images108-year-old Martin McEvilly is Ireland's oldest man.He was still using an exercise bike at the age of 105, and has outlived his 10 siblings.Here are his longevity secrets, including God, Guinness, and gathering moss.At 108 years old, McEvilly is the oldest man in Ireland.Born in Rosscahill, a village of about 300 people in the west of the country, he has outlived all 10 of his older siblings, many of whom lived into their 90s, GalwayBeo reported.This suggests that they may share longevity-boosting genes.