THURSDAY, Feb. 9 (HealthDay News) -- When Jane Able's 4-year-old daughter, Ellie, was diagnosed with a severe peanut allergy, the New Albany, Ohio, mother got trained in using an epinephrine pen and never leaves home without it.

(HealthDay News) -- A toothache can be a real pain, but you can take steps to care for tooth discomfort.

(HealthDay News) -- Potatoes are a great source potassium, fiber and vitamin C, but many popular recipes also load on the calories.

THURSDAY, Feb. 9 (HealthDay News) -- Zebras evolved from all black to striped in order to repel insects that distract them from feeding, a new study contends.

THURSDAY, Feb. 9 (HealthDay News) -- Four new genes associated with type 2 diabetes have been identified by researchers, who also pinpointed six independent diabetes-associated gene variants at previously known locations on chromosomes.

THURSDAY, Feb. 9 (HealthDay News) -- The cancer drug bexarotene quickly eliminates Alzheimer's disease-associated amyloid beta from the brain and reverses memory problems in mice, a new study finds.

THURSDAY, Feb. 9 (HealthDay News) -- The longer Hispanic women live in the United States, the more likely they are to have a preterm birth, a new study says.

WEDNESDAY Feb. 8 (HealthDay News) -- For people struggling with plantar fasciitis --- a painful and sometimes disabling foot condition -- a small, preliminary study suggests that a new type of therapy is more effective than standard cortisone injections in restoring mobility.

WEDNESDAY, Feb. 8 (HealthDay News) -- An increased risk for coronary artery disease can be passed genetically from father to son on the male Y chromosome, a new study says.

THURSDAY, Feb. 9 (HealthDay News) -- A shocking new national survey suggests that nearly all orthopedic surgeons may order unnecessary tests, referrals or hospitalizations to avoid being sued, to the tune of $2 billion a year.

THURSDAY, Feb. 9 (HealthDay News) -- Heart disease may be a risk factor for prostate cancer, a new study suggests.

WEDNESDAY, Feb. 8 (HealthDay News) -- Many doctors may be less than honest with their patients, a new survey finds.

THURSDAY, Feb. 9 (HealthDay News) -- People who suffer a rare type of fracture of the thigh bone while taking bone-building drugs known as bisphosphonates can cut the risk of a second fracture by discontinuing the medication, a new study says.

THURSDAY, Feb. 9 (HealthDay News) -- The number of American adults who received advice from their doctor to engage in regular exercise has increased steadily over the past decade, according to new research from U.S. health officials.

THURSDAY, Feb. 9 (HealthDay News) -- A new study finds that the babies of women who had chemotherapy while pregnant aren't at higher risk for a variety of medical disorders, a sign that the treatment should be safe for the fetus in most instances.

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

THURSDAY, Feb. 9 (HealthDay News) -- A growing number of Americans are getting advice and information about facial plastic surgery from social networking sites rather than friends, a new survey indicates.

THURSDAY, Feb. 9 (HealthDay News) -- Small, premature infants born by cesarean section are at 30 percent higher risk for serious breathing problems than those delivered vaginally, a new study finds.

THURSDAY, Feb. 9 (HealthDay News) -- A case study of two men who were poisoned and turned blue after ingesting what they thought was a recreational drug that they had bought on the Internet highlights the dangers of such purchases, a new report claims.

THURSDAY, Feb. 9 (HealthDay News) -- The star power gathered on the runway was impressive and so were the red-hot designer frocks, all on display at the 10th annual "The Heart Truth" Red Dress Collection fashion show, held in New York City on Wednesday night.

THURSDAY, Feb. 9 (HealthDay News) -- Getting behind the wheel within three hours after using marijuana nearly doubles a driver's risk of having an accident, a large new research review finds.