 In Season 9, Bones mentions that he does not throw his socks into the hamper after coming home from work so that his feet stay warm, suggesting that he still suffers from the physical ramifications of the torture he endured.Booth is still haunted by memories from his time in the Army, having lost friends in combat and watched his own buddy bleed to death in his arms.As such, he is noticeably affected when investigating cases involving veterans and was also implied to have stopped attending unit reunions and gatherings in an effort to distance himself from his painful past in the military.