To describe the prevalence of binge drinking, the CDC analyzed data from its 2011 Behavioral Risk Factor Surveillance System, an annual telephone survey, and the national 2011 Youth Risk Behavior Survey, an anonymous questionnaire completed by high school students nationwide.

CNN: CDC: 1 in 5 high school girls binge drink

According to data from the Centers for Disease Control and Prevention's Behavioral Risk Factor Surveillance System Survey 2004, more than 70% of adult Milwaukeeans reported that they had had at least one alcoholic drink within the past 30 days--the highest percentage on our list.

FORBES: America's Drunkest Cities

Some in the field have been frustrated by the classification system, which focuses on behavioral symptoms and not on chemical changes or brain abnormalities.

WSJ: Revised Psychiatric Manual Faces Mixed Reviews

Often, Wright would patch the most obvious vulnerabilities but leave esoteric ones unpatched, allowing hackers to exploit the system as he monitored their behavioral patterns.

CNN: How real is 'Skyfall's' portrayal of cyberterrorism?

We use the nationally recognized Project Wisdom Character Education program and the Positive Behavioral Interventions and Supports (PBIS) system to teach students how to make good choices and be rewarded for such choices.

WHITEHOUSE: Building Long Lasting Relationships

Exposure to lead can affect virtually every system in the body and cause intellectual and behavioral deficits.

CNN: Baby food makers in California court over lead warnings

Most children with MND had abnormal muscle tone and posture, an indicator of nervous-system dysfunction in young children, which is linked to learning and behavioral disorders such as ADHD, researchers said.

WSJ: Predicting Carpal Tunnel Syndrome