The following is a guest post from Dr. Kaylene Henderson. I once heard that young children are hardwired to dream about frightening, child-eating creatures. Apparently it’s an evolutionary advantage to have had a few practice runs before being chased by a real saber-tooth tiger. These nightmares affect 50% of children and occur most often in the 3-6 year age group. Children’s brains have adapted to modern times though so instead of saber-tooth tigers it is now monsters which haunt our young