Dreams are mental experiences that generally occur during REM sleep. During this phase, the brain is very active. Dreams take the form of sequences of images, sounds and emotions in the mind of the dreamer.
Much research is underway to determine how dreams are created. In fact, dreams are thought to be constructed in part by the hippocampus, a region of the brain that plays a central role in cognition, memory and learning. It would seem that the hippocampus contributes to the creation of dreams beyond the simple addition of memories. Recent neuroscience research has shown that the hippocampus also helps to construct imaginary scenarios and simulate future events.
Dreams play a key role in the consolidation of learning and memory. They help to integrate and process daytime experiences. That's why quality sleep, with its dream cycles, is essential.

For further information, we recommend that you consult :

- Institut national du Sommeil et de la Vigilance website