According to Lopez, studies also show that hope promotes healthy behaviors, including fruit and vegetable consumption, regular exercise, safe sex practices and quitting smoking.

CNN: How hope can help you heal

Because egg freezing requires the use of in vitro fertilization for future pregnancies, its widespread adoption would also likely increase the use of preimplantation sex selection and genetic diagnosis, practices which pose a range of ethical dilemmas.

WSJ: The Ethics of Egg Freezing

Although confidentiality rules differ by state, most practices guarantee patients that what they say about sex and substance abuse issues will stay private.

WSJ: Young Adults Find It's Hard to Part With the Pediatrician