Citing a dramatic increase in infant deaths, Los Angeles County officials are warning parents not to let babies sleep in the bed with them.

The warning comes at a time when the practice, known as "co-sleeping," is growing in global popularity

A new U.S. study suggests that babies of women who use drugs, alcohol or tobacco during pregnancy may have altered brain structures that continue into early adolescence.

Researchers at Children's Hospital Boston and the Boston Medical Center used MRI (magnetic resonance imaging) scans to study the brains of 35 children, average age 12, who were exposed to the substances while in the womb

More than 91,000 babies in the United States were mistreated in their first year of life in the 2006, according to the first national estimate of abuse of the nation's youngest children. The report was prepared by federal officials on the basis of cases substantiated by state and local children's protective services agencies.

Nearly a third of the victims were one week old or younger when the maltreatment was reported, government researchers said Thursday. The study focused on children younger than 1

A groundbreaking study has revealed why some people are able to recover from a traumatic event, while others develop post-traumatic stress disorder (PTSD). Both genetic and environmental factors affect people's risk of developing post-traumatic stress, the new study found.

A particular genetic variant makes people much more susceptible to PTSD after tragic experiences, but only if they have also had an abusive childhood, scientists in the United States have discovered

Cocaine use in young or otherwise healthy patients can sometimes cause chest pain and similar symptoms according to a warning from the American Heart Association (AHA) on Monday. It also added that the physicians should ask their patients as to whether they may have used the drug in such cases as two standard heart attack treatments -- beta-blockers and clot-busting drugs -- can be dangerous if a patient has been using cocaine.

Cocaine use can cause chest pain, shortness of breath, anxiety, palpitations, dizziness, nausea and heavy sweating - all symptoms of a heart attack. But it also results in increased blood pressure that can increase the risk of bleeding into the brain if a patient is given clot-busting drugs. Beta-blockers can cause higher blood pressure and constricted arteries in people who've used cocaine