Article continues below advertisementEric Decker is learning to laugh about getting older - mostly thanks to his four kids.The former NFL star, 38, tells OK! his little ones never miss a chance to point out that he's "losing" more than just a few hairs while sitting down for an exclusive chat about growing out his mustache as part of his latest partnership with Gillette and Movember."I'll embrace the grays for sure," Eric, who shares Vivianne, 11, Eric Jr., 10, Forrest, 7, and Denver, 1, with wife Jessie James Decker, says with a laugh, discussing how he's nearing age 40.