TUESDAY, Dec. 21 (HealthDay News) -- Headaches are truly miserable things. There's little good to be said about throbbing, crushing, skull-pounding pain that makes you wince and moan.

TUESDAY, Dec. 21 (HealthDay News) -- Judy Brown says she has suffered from terrible migraine headaches since she was in her teens.

MONDAY, Dec. 6 (HealthDay News) -- A new study finds that race, gender and where you live strongly affect your risk for high blood pressure, which is a major risk factor for heart disease and stroke.

(HealthDay News) -- Frostbite may set in when fingers, toes or other parts of the body are exposed to very cold temperatures.

(HealthDay News) -- Athlete's foot fungus makes the feet itchy, red, cracked and flaky. Fortunately, treatment usually is effective, although the infection is prone to returning.

TUESDAY, Dec. 21 (HealthDay News) -- As million of workers have discovered in recent years, losing a job is upsetting and unsettling and can reduce even the most stoic to tears.

TUESDAY, Dec. 21 (HealthDay News) -- A new study finds that while doctors are fearful of being sued for malpractice, their worries are greater than their actual risk of landing in court.

TUESDAY, Dec. 21 (HealthDay News) -- Children with autism may lack certain visual skills needed to be independent in adulthood, new study findings suggest.

TUESDAY, Dec. 21 (HealthDay News) -- The recreational drug known as ecstasy may have a medicinal role to play in helping people who have trouble connecting to others socially, new research suggests.

TUESDAY, Dec. 21 (HealthDay News) -- For acute myeloid leukemia patients, overactive genes in their leukemic stem cells (LSC) can translate into a more difficult struggle to overcome their disease and achieve prolonged remission, new research reveals.

TUESDAY, Dec. 21 (HealthDay News) -- Certain cells in white fat can be changed into energy-burning brown fat, according to an animal study that might one day lead to new treatments for obesity, researchers report.

TUESDAY, Dec. 21 (HealthDay News) -- Like human children, young chimpanzees appear to play differently depending on their sex, say researchers who spent 14 years observing a chimpanzee community in a national park in Uganda.

TUESDAY, Dec. 21 (HealthDay News) -- Runners who lose 3 percent or more of their body weight during a marathon finish the quickest, researchers have found.

TUESDAY, Dec. 21 (HealthDay News) -- A new study finds that more babies die of sudden infant death syndrome (SIDS) in the United States on New Year's Day than any other day of the year.

TUESDAY, Dec. 21 (HealthDay News) -- New research provides more evidence that treating certain lymphoma patients with an expensive drug over the long term helps them go longer without symptoms. But the drug, called rituximab (Rituxan), does not seem to significantly increase life span, raising questions about whether it's worth taking.

TUESDAY, Dec. 21 (HealthDay News) -- Teen births in the United States reached a record low in 2009, as births to teenagers fell 6 percent from the previous year to the lowest level seen in almost seven decades, health officials reported Tuesday.

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

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

TUESDAY, Dec. 21 (HealthDay News) -- Medtronic's Endurant AAA Stent Graft system, designed to treat a bulge in the largest abdominal blood vessel, has been approved by the U.S. Food and Drug Administration, the company said Tuesday.