Watch: Christina Applegate Makes "Real, Raw, Honest" Instagram Debut Amid MS BattleChristina Applegate is sharing a candid update on her health. Years after sharing her multiple sclerosis diagnosis, the Married...with Children alum opened up about how her condition has rendered her bedridden due to chronic pain. But even through Christina's struggles with MS, spending time with her 15-year-old daughter Sadie-who she shares with husband Martyn LeNoble-at school drop-off is worth fighting for.