In the quite proper debate on concentration, these points must not be lost.

It is possible to get up to +2 by spending that many attack points on "concentration."

I pulled back on the concentration and woke her free of it with another question.

There are, in our society, increasing limits on the concentration of power.

Previously, the focus was on the "concentration" of the subject.

A change in temperature has no effect on the perceived concentration of salt, she said.

It can however have wider impact on memory and concentration.

This depends on the concentration with which the practice is undertaken.

According to studies, chewing gum can have a good effect on the concentration.

Experts say success depends on concentration and a peaceful state of mind.