Findings in a recent research have proposed the significance of sleep, stating that people might learn while asleep, which can instinctively alter their behavior, even when they are awake.

Several studies have been carried out previously, which stressed that sleep has its own importance in development of mind and helping the brain learn more and memorize. However, none were able to provide with evidences, which supported their explanation.

However, a team of researchers, including Professor Noam Sobel and team from Weizmann Institute'sNeurobiology Department, Anat Arzi -a research student and a few other experts from Loewenstein Hospital and a college, conducted a series of experiments, in which the participants were initially subjected to a tone and then an odor.

In case of odor, the consequences were same, while those when awake, bad smells were inhaled less and the pleasant aroma was deep breathed. Even the tones were either pleasant or unpleasant.

The study published in Nature Neuroscience, emphasized that if people smell certain odors, following listening some tones, while still asleep, they start smelling the odor again, even without its presence, when they hear the same tone. People behave in such a manner when they are sleeping and also when they are awake.