My mom has Alzheimer's disease. She is confused and forgetful all the time. But I love her with all my heart and I will be with her for the rest of her life.
 confused forgetful mentally challenged mentally unstableconfused 是頭腦不清楚最貼切的字，forgetful 指健忘，mentally challenged 指弱智。
This popular movie star is protected by his three bodyuards 24-7.