Buying online "brain training games" is like throwing money away. Companies behind the training programs promise to sharpen the mental skills of young people and slow their decline in older people. But the Federal Trade Commission (F.T.C.) recently ordered one of the largest companies to stop making such claims. "The research," says an F.T.C. attorney, "doesn't show any real-world benefits. Other experts agree. Tests showing that these "brain games" work are misleading, say the critics. Test scores improve, but only because people get better at playing the games.
1.What is the author's claim?