Hendrickson currently[when?] resides in Escondido, California. He suffered several concussions during his playing years. During his NFL career, concussion were often ignored as a long term health risk. Hendrickson suffers from many of the same symptoms as other former NFL players who have been diagnosed with trauma-related brain injuries resulting from concussions during their playing years. He now collects a disability payment from the Social Security Administration in addition to a disability pension from the NFL Player Retirement Plan. The NFL pension plan's six person board determined his injuries were "non-football related" which made him ineligible for enhanced benefits.