Most treatments for this common neck injury are ineffective, a study finds, and many actually exacerbate the condition.

Despite its use as a soil stabilizer, it actually exacerbates and speeds up coastal erosion.

This leads doctors to order biopsies, which can actually exacerbate the growth of these lumps.

Some of the medications prescribed for the conditions listed above can actually exacerbate the symptoms of bipolar disorder.

However, some have contended that it actually exacerbates traffic congestion, leading to air pollution and other undesirable outcomes.

Since it was necessary to raze some other adjacent stores and buildings to create parking lots, the plan actually exacerbated the neighborhood's decline.

"Instead of allowing the marketplace to sort its way through," Mr. Kelly said, "it actually exacerbates this problem."

As a result, pilots react in a way that actually exacerbates the problem, rather than corrects it.

"Censorship," he said, "is usually counterproductive and can actually exacerbate the risks which it seeks to reduce."

"Otherwise, their increased flexible-fuel vehicle sales will actually exacerbate our oil dependence."