Everything you need to know about:4x4x48 Challenge

With this upcoming weekend being 4x4x48 weekend, where people worldwide take part in David Goggins' 4 miles every 4 hours for 48 hours challenge, Seán and Eric look back on Seán's approach to the Challenge last year.We look at the preparation, training, nutrition and what they would change if they were to do the event again.The Ultrapure 5K Running Bundle is a must have for your running routine. Shop HEREGet the AGR Ultrapure Sprint Bundle HERE with the exclusive AGR Bobble Hat!! If you've never had your VO₂ max or metabolism measured, there's a good chance you're training at the wrong intensity, missing valuable adaptations, or getting your race nutrition wrong.Health Matters replaces guesswork with data. With over 15 years of experience, they're one of Europe's most experienced performance testing providers.Find out more or book your test at myhealthmatters.ie.