Gum has been studied for its beneficial effects on memory, alertness, anxiety reduction, appetite suppression, mood and learning.

FORBES: Chew Yourself a Better Brain

Although the drug is unlikely to relieve all of the symptoms of the disorder, decreasing anxiety in people with Rett syndrome may mitigate symptoms including learning difficulties, the inclination to withdraw socially and even the tendency to hyperventilate.

ECONOMIST: Neuroscience (1): Calm the anxiety, help the child | The

Every day spent learning the ropes is another day of rising costs, mounting deficits, and growing anxiety for our families.

CNN: Clinton's November 19, 2007, speech on economic challenges