TUESDAY, Jan. 5 (HealthDay News) -- Annual breast cancer screening should begin at age 40 for most women and start earlier -- between 25 and 30 -- for those at high risk for the disease, say new recommendations from the American College of Radiology (ACR) and the Society of Breast Imaging (SBI).

TUESDAY, Jan. 5 (HealthDay News) -- Antidepressants seem to be most effective for the people with the most severe symptoms, new research suggests.

TUESDAY, Jan. 5 (HealthDay News) -- Researchers have some good news for cocaine addicts: New findings suggest that a kind of protein could help them beat their addiction.

TUESDAY, Jan. 5 (HealthDay News) -- There's been some bad news over the past couple of days for Americans battling depression.

TUESDAY, Jan. 5 (HealthDay News) -- Highly educated, older parents are more likely to have a child diagnosed with autism, a new study finds.

TUESDAY, Jan. 5 (HealthDay News) -- Obesity now poses as great a threat to Americans' quality of life as smoking, a new study shows.

TUESDAY, Jan. 5 (HealthDay News) -- Concentrations of several biomarkers begin to grow three years before women are diagnosed with ovarian cancer, but only reach substantial elevation levels over the 12 months before diagnosis, new research finds.

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

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

TUESDAY, Jan. 5 (HealthDay News) -- Men with restless leg syndrome are more likely to have erectile dysfunction, new research suggests, but it's not clear how the two conditions are related.

TUESDAY, Jan. 5 (HealthDay News) -- A fat hormone known as leptin controls a gene in the liver that's linked to the dampening of diabetes in animals, researchers have found.

TUESDAY, Jan. 5 (HealthDay News) -- Laboratory tests suggest pomegranates contain chemicals that reduce the risk that women will develop hormone-dependent breast cancers, researchers report.

TUESDAY, Jan. 5 (HealthDay News) -- New research suggests that low-income mothers who were visited by nurses before the birth and during the infancy of their female child could reduce the chances that the child will get in trouble with the law by age 19.

TUESDAY, Jan. 5 (HealthDay News) -- Many computer users lunge for the delete key when they get unsolicited e-mails about weight-loss products. But some respond, and new research suggests that almost one in five young, overweight people have fallen prey to the hard sell that shows up in their spam.

TUESDAY, Jan. 5 (HealthDay News) -- Despite the recession, U.S. health-care spending in 2008 reached $2.3 trillion -- or $7,681 per person -- and grew faster than the national economy, a new study has found.

(HealthDay News) -- Hair loss isn't confined to men. Women and even children can lose their hair, the American Academy of Family Physicians says.

(HealthDay News) -- You can sprain an ankle during just about any activity, even walking. A sprain occurs when the ligaments that support the ankle become stretched beyond their normal range, or torn.

TUESDAY, Jan. 5 (HealthDay News) -- With new rules in place that lifted restrictions on federal funding of human embryonic stem cell research, health-care advocates are looking down the line and wondering when the first medical advances based on stem cells might occur.