DEAR DOCTOR K: I'm a woman in my mid-50s. Lately I haven't been able to become sexually aroused. What could be wrong?
DEAR READER: Sex is complicated. You probably already know that. Sexual desire surely resides in the head, but other parts of the body can affect desire as well. In particular, the genital organs communicate with the brain. Likewise, the brain communicates with the genital organs. Desire in the brain causes changes in the pelvic organs. Perceiving these changes can, in turn, enhance sexual desire.