The daughter of Dr. Nancy Pearson and Felix Moreno, Helena is the older of two children. Her mother received her Ph.D. from Rice University in Botany, and today is part of the team at Baylor College of Medicine. Her father gained success in the oil and gas industry, and has been a prominent entrepreneur in Texas since the mid '80s.
In 1995, Helena attended SMU in Dallas where she studied communications. In her senior year, she studied in Madrid for six months and was later accepted into the American University program in Washington, D.C. where she was assigned to assist First Lady Hillary Clinton in the White House.
Throughout her college years, Helena wrote for the SMU college newspaper, The Daily Campus. She interned with KHOU-TV and KTRK-TV in Houston. In 1999, Helena graduated and immediately began working as a television reporter in Savannah, Georgia's WTOC. In short order, she began anchoring on the weekends. One year later, Hearst-Argyle Broadcasting Corporation recruited Helena to report for its New Orleans station, WDSU-TV.
Her journalistic talents earned top honors from the Associated Press and Press Club of New Orleans. She was part of the team that earned an EMMY for outstanding coverage of Hurricane Katrina. During Katrina, Helena reported non-stop for 18 hours through the worst of the storm, and then reported throughout the recovery.
She was an audience favorite as a morning news anchor at WDSU-TV, and a member of the station's Investigative Reporting team. She served as a volunteer for the Louisiana SPCA, the Arts Council, Children's Hospital, Bravo, and Girls First. The Louisiana Federation of Teachers named her Broadcaster of the Year, and Victims and Citizens Against Crime honored her as Newscaster of the Year. For four years straight, Gambit Weekly readers recognized Helena as Reporter of the Year. And New Orleans Magazine titled her as one of New Orleans' Most Popular Anchors.
On March 3, 2008, Helena resigned from WDSU-TV, and weeks later filed papers with the FEC to become a candidate for Congress in Louisiana's 2nd District. She is a Democrat.