The 2003 team were reunited at Twickenham before England's match against New Zealand in November.
Together they have launched an initiative focusing on helping former players suffering with mental and physical health issues, some of which have been documented in a new TNT Sports documentary called Unbreakable.
Ex-prop Phil Vickery, one of three members of the squad who claim a lack of precautions and care by the game's authorities contributed to their brain injuries, added that it was important that sportspeople are seen as people rather than invulnerable heroes.
"We, with lots of other people, created a magical moment. We toured around London with a million people watching. It was the most amazing experience, but we are human," he added.
"We have struggles, we have highs and lows and the documentary is showing people that it is all right not to be all right.
"It is about just being honest, instead of talking in a false, mystical way about how everything is amazing and brilliant. That's not negative - it's just reality."
