The effect of respiration on memory consolidation

Breathing through the nose significantly increases memory recognition compared to breathing in the mouth, regardless of the habit of smells.

Breathing Through Your Nose Can Improve Your Long-Term Memory. Here’s How To Do It Correctly

The main cognitive functions are modulated by the respiratory cycle but at the same time breathing through the nose activates the memory network differently than the mouth. The reason is the olfactory sensory neurons, which detect the mechanical pressure caused by the airflow in the nostril, and sends this information to the olfactory bulb, which usually encodes information about the smell. The olfactory bulb sends this information to the hippocampus, which is important for memory functions. In many neurodegenerative diseases, such as Parkinson’s and Alzheimer’s disease, olfactory bulbs have a negative effect on the early ones.

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