Your sense of smell is special. Your sight, sound, taste, and touch all travel through a sensory area of your brain called the thalamus. SMELL GOES DIRECTLY TO THE BRAIN – there’s no middle man. Smells are powerful brain stimulations. I’m sure you’ve experienced this…..the smell of homemade cookies baking in the oven brings fond memories of your childhood flooding back….makes your mouth water. Or on the other hand, just a whiff of spoiled milk makes your stomach turn. Smells you like stimulate the left side of the brain. Smells you don’t like stimulate the right side of the brain.