EAT A BIG MEAL BEFORE HITTING THE MALL: Shopping at the mall on an empty stomach may lead consumers to purchase more than they originally intended. Hunger pangs often cause shoppers to speed up the shopping process in order to go to the food court, says John Fitzgerald, a personal finance professor. Contact him at jfitzger@bsu.edu or (765) 285-8192.

FAMILIES ARE TOO BUSY TO COOK: A society constantly on the go leaves many families without enough time to shop and prepare traditional holiday meals. The restaurant industry has stepped in, providing millions of Americans the option of dining out instead of slaving over hot stoves, said James Lowry, a marketing professor. Contact him at jlowry@bsu.edu or (765) 285-5180.

TEACHERS SHOULD NOT GIVE STUDENTS HOMEWORK: Few children and families need the headache of school assignments hanging over their heads during the holidays. Larry Smith, an elementary education professor, recommends that K-12 teachers should avoid making assignments to give their students a much needed break. He may be reached at lsmith@bsu.edu or (765) 285-8564.

A NEW PET IS OFTEN THE WRONG GIFT: The holiday season may be the worst time to adopt a puppy or kitten. Many families are committed to a variety of parties and special events, leaving little time for proper training and bonding, say Dan Lapsley, an educational psychologist. Contact him at dlapsley@bsu.edu or (765) 285-8522.

SCIENTIFIC EXPLANATIONS FOR STAR OF BETHLEHEM: The biblical story of a bright star marking the birth of Jesus may have a scientific explanation, including a comet, exploding sun or an unusual alignment of planets. For more information about the skies 2,000 years ago, contact Ron Kaitchuck, astronomy professor and director of the Ball State planetarium, at rkaitchu@bsu.edu or (765) 285-8861.