Exercise: Good medicine for panic. Everyone knows it's a good idea to get plenty of exercise. Turns out aerobic activity may be particularly effective in fighting panic. A 2005 study used a panic-inducing drug (cholecystokinin tetrapeptide, a.k.a. CCK-4) to compare susceptibility to panic in healthy subjects among one group after engaging in 30 minutes of "quiet rest" and another after 30 minutes of exercise. The result: "In both conditions, CCK-4 administration was followed by a significant increase in Acute Panic Inventory scores; however, prior exercise resulted in significantly lower scores than quiet rest."