A person’s “fluid intelligence”— the ability to reason and to solve new problems independently of previously acquired knowledge—was long thought to be fixed, something that couldn’t be taught.

But new research from the University of Michigan suggests that memory-building exercises can also boost fluid intelligence. In everyday life, that could result in greater problem solving ability, superior performance on intellectual tasks and even more success at work.

In the study, memory-training exercises were given to four groups, who repeated the exercises for eight, 12, 17, or 19 days. The trained subjects showed significant improvement compared to control subjects. "The more training, the more improvement in fluid intelligence," says psychology researcher Susanne Jaeggi.

So, do the crossword or Sudoku, take a course, learn a new language: it pays to keep your brain sharp. Be sure to try RD.ca’s Memory Challenge, too! And don't forget to enjoy a cup of java, while keeping your home (and brain!) clutter-free.