Posted: 5:16 AM More people pull the night shift. Teens text past midnight and stumble to class at dawn. Travelers pack red-eye flights.

Updated: 12:54 PM Thanks to the hours and dedication of dozens of doctor from UT Medical Center and East Tennessee Children's Hospital; Caterina is recovering after a life saving surgery.

Posted: 12:33 PM A federal appeals court is considering the constitutionality of requiring large graphic photos on cigarette packs to show that smoking can harm or kill smokers.

Posted: 12:27 PM Nearly every state saw a decline in teen births from 2007 to 2010, with the biggest drop in Arizona at 29 percent. Rates stayed about the same in three states: Montana, North Dakota and West Virginia.

Updated: 12:00 PM A House committee has killed a bill to require insurance companies to pay for oral chemotherapy treatments.

Posted: 5:50 AM Some nail polishes commonly found in California salons and advertised as free of a so-called "toxic trio" of chemicals actually have high levels of agents known to cause birth defects, according to state chemical regulators.

Posted: 6:20 AM Obesity during pregnancy may increase chances for having a child with autism, provocative new research suggests.

Posted: 9:48 AM Officials in Nashville are planning a second public bicycle program, this one aimed at commuters.

Updated: 5:20 PM The new report, developed by societies that represent hundreds of thousands of physicians, claims some doctors are performing unnecessary tests and treatments.

Posted: 10:30 AM Audiologists at the Monroe Carell Jr. Children's Hospital at Vanderbilt say long-term hearing loss is possible because of the proliferation of smartphones, portable gaming systems and media players.

Posted: 7:39 AM Audiologists at the Monroe Carell Jr. Children's Hospital at Vanderbilt say long-term hearing loss is possible because of the proliferation of smartphones, portable gaming systems and media players.

Posted: 2:53 PM The Government Operations Committee voted 5-4 on Wednesday to send the proposal sponsored by Democratic Sen. Beverly Marrero of Memphis to the Senate Health Committee.

Posted: 2:50 PM The City of Harriman is inviting veterans and everyone else to a strategic planning meeting to discuss donating a 4-story, 75-bed hospital to the Veterans Administration.

Posted: 6:50 AM The University of Tennessee College of Nursing is hosting a free health fair on Wednesday.

Posted: 5:14 AM Nine medical societies representing nearly 375,000 physicians are challenging the widely held perception that more health care is better, releasing lists Wednesday of tests and treatments their members should no longer automatically order.

Posted: 5:13 AM Although most children with autism keep that diagnosis through teenage years and beyond, a new study suggests some kids might just "bloom" out of the developmental disability.

Posted: 3:59 PM President Barack Obama offered a firm defense of his health care law, saying Monday he remains confident that the law will be upheld by the U.S. Supreme Court.

Posted: 4:58 AM BlueCross BlueShield of Tennessee is sponsoring a contest designed to inspire people to eat healthy foods.

Updated: 9:10 PM New research suggests that long-term use of any type of hormones to ease menopause symptoms can raise a women's risk of breast cancer.

Posted: 10:12 AM New research might help explain why black women are so much more likely than whites to develop and die from cervical cancer.

Updated: 11:24 AM Five year old Elaina Whaley decorated and chowed down a pepperoni "Mini Murph" while waiting for her weekly chemo treatment.

Posted: 11:45 AM Now the justices will wrestle with what to do with President Barack Obama's health care overhaul. They have a range of options, from upholding the law to striking it down in its entirety.

Posted: 11:08 AM According to new government statistics, the rate is about 1 in 88. That means autism is nearly twice as common as the government reported just five years ago. The largest increases are in Hispanic kids.

Posted: 6:42 AM At 18 months, Cristina Astacio spoke only a few words, wouldn't respond to her name and shunned other kids in her day care group. Last October, her worried parents found out why.

Posted: 6:32 AM Governors of three states got up close with "pink slime" Thursday, touching and examining treated beef at a plant and eating hamburgers made with it in a bid to persuade grossed-out consumers and grocery stores the product is safe to consume.