(HealthDay News) -- While iron deficiency is a big concern, absorbing too much iron -- a condition known as hemochromatosis -- can also pose problems.

(HealthDay News) -- When a health condition such as Celiac disease requires a gluten-free diet, you may not be aware of what is okay to eat.

TUESDAY, June 14 (HealthDay News) -- Sufficient sleep improves college students' ability to learn, a new study finds.

TUESDAY, June 14 (HealthDay News) -- Daytime sleepiness is associated with an increased craving for carbohydrates among teens, according to new research.

TUESDAY, June 14 (HealthDay News) -- Scheduling classes later in the day provides college students with more time to sleep in the morning, but it may also encourage them to stay up later drinking, new research suggests.

TUESDAY, June 14 (HealthDay News) -- Patients with early-stage chronic kidney disease are more likely to die if they have elevated levels of a certain hormone, a new study says.

TUESDAY, June 14 (HealthDay News) -- Some people may lose sleep over the pressure to be thin -- especially young white girls who are being pushed by female friends to lose weight or stay skinny, according to a new study.

TUESDAY, June 14 (HealthDay News) -- People who get six to nine hours of sleep each night rate their quality of life higher and are less likely to feel depressed than those who sleep less, according to a new study.

TUESDAY, June 14 (HealthDay News) -- Preschoolers who don't get enough sleep are more likely than other children to be hyperactive and inattentive by the time they reach kindergarten, according to a new study.

TUESDAY, June 14 (HealthDay News) -- Homeless people have higher death rates and a much lower life expectancy than other people, a new Danish study finds.

TUESDAY, June 14 (HealthDay News) -- Your chances of suffering harm because of a medical error are about the same in a doctor's office as in a hospital, according to a new study.

TUESDAY, June 14 (HealthDay News) -- Certain surgeries that typically require the use of general anesthesia could be safely performed with localized anesthesia in combination with hypnosis, Belgian researchers suggest.

MONDAY, June 13 (HealthDay News) -- After suffering a first stroke or transient ischemic attack (TIA), people with diabetes are at greater risk of having another stroke or a heart attack, a new study confirms.

TUESDAY, June 14 (HealthDay News) -- Not only do cooler heads prevail, they might also sleep better, according to researchers who say they have developed a cooling cap that, when worn during sleeptime, may help treat insomnia.

TUESDAY, June 14 (HealthDay News) -- A mist inhaler with the drug Spiriva is associated with a 52 percent increased risk of death among people with chronic obstructive pulmonary disease (COPD), a new review shows.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

TUESDAY, June 14 (HealthDay News) -- Couch potatoes beware: All those hours in front of the TV may be making you sick, or even killing you.

TUESDAY, June 14 (HealthDay News) -- The U.S. Food and Drug Administration said Tuesday it will require new labeling for sunscreens to identify products that are best for reducing the risk of skin cancer, early skin aging and helping to prevent sunburn.

TUESDAY, June 14 (HealthDay News) -- A new genetic test that helps determine if breast cancer patients are good candidates for treatment with the drug Herceptin was approved Tuesday by the U.S. Food and Drug Administration.

TUESDAY, June 14 (HealthDay News) -- A genetic test to help doctors evaluate whether women with breast cancer are candidates for treatment with the drug Herceptin (trastuzumab) has been approved by the U.S. Food and Drug Administration.

TUESDAY, June 14 (HealthDay News) -- For pregnant women, reducing the risk for stillbirth may be as simple as sleeping on their left side, New Zealand researchers suggest.

TUESDAY, June 14 (HealthDay News) -- The first ceramic-on-metal total hip replacement system has been approved by the U.S. Food and Drug Administration.