During middle childhood, attention becomes

Young Marita has periods during her sleep when she will appear to wake up and will scream, kick and thrash

She appears to be in significant distress as she breathes faster and faster. Which of the following statements best explains what is happening? A) Marita is experiencing night terrors. B) Marita is experiencing hyperstimulation of the sympathetic nervous system caused by sleep deprivation. C) Marita is responding to nightmares, which are common in young children. D) Marita is not fully asleep, and is experiencing a disorder of first and second sleep stages.

Alex has erectile disorder, and has not responded to any of the drugs containing sildenafil. He is unwilling to have surgery, so his doctor suggests

a. implants. b. Viagra. c. a vacuum system. d. the stop-start procedure.