Science says that smells trigger memories from your childhood or from happy or bad memories.

Senses and intelligence

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Our experiences, beliefs and culture affect what we notice out of the thousands of stimuli our senses are receiving. Our brain uses information it gathers through our five senses, interprets it and perceives the world around us, creating our life experience.

Because tactile sensation gathers so much information, its possible to fool the brain into interpreting information incorrectly. For example, a trick called the Aristotle illusion calls for a person to cross her fingers and touch a small round object. Because the brain is not used to receiving tactile information of this sort from crossed fingers, it'll interpret the single object as two

Every person smells things differently. This is because of the over 900,000 genetic variations of olfactory receptors.your friend.Good smells make you happier.Odors can accelerate puberty, attract mates, and alter menstrual cycles in humans.

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