Critics say that doctors "cherry-pick" the most profitable patients while leaving poorer patients with more complicated needs to other hospitals. A study published in the British Medical Journal, however, suggests that the critics are wrong.

Homemakers aren't saving for retirement, a report from the Transamerica Center for Retirement Studies and the Aegon Center for Longevity and Retirement says.

Moodys said the IRS was expected to require sponsors to apply the new mortality assumptions this year but that the agency will not apply the new numbers until 2017.

Nearly six in 10 U.S. psychiatrists are age 55 or older, according to the Association of American Medical Colleges.