India, Feb. 6 -- Solving a complex problem can feel like repeatedly hitting an invisible barrier. It's frustrating because the answer seems within reach, yet the dots just won't connect. But perhaps the solution lies in taking a step back, and simply. napping!

A study published in the journal of Journal of Sleep Research uncovered how sleep improves problem-solving skills. REM (Rapid eye movement) phase of sleep is responsible for the positive change.

The researchers found in their study that those participants who took brief naps were able to solve complex problems more efficiently, in contrast to those who didn't take any naps. Let's see how this works.

The study focused on analogical problem-solving. It basically involves solving a ...