Does your one-day-old baby smell?

Yes. When you bring rotten egg or fish near a day old baby, the facial expressions indicate rejection.
Smell is one of the chemical senses, the other being taste. They are so called because they sense chemicals, and smells are, of course, chemicals. With these senses we sample our environment for information. We are continuously testing the quality of the air we breathe (so we know potential dangers, e.g. smoke) as well as using this sense to inform us of other relevant information, such as the presence of food or another individual. The chemicals detected by our sensory systems need to have certain properties. For instance, odor molecules must be small enough to be volatile (less than 300-400 relative molecular mass) so that they can vaporize, reach the nose and then dissolve in the mucus. This tells us that smell, unlike taste, can signal over long distances . We appear to have an innate ability to detect bad, aversive smells.
Dogs and horses can know the smell of fear occurring in human beings. And dogs can also differentiate sweat smell of non-identical twins. Recent research has shown that a panel of women can discriminate between armpit swabs taken from people watching "happy" and "sad" films. Men were less good at this.
It is said that we can smell between 4,000 and 10,000 different odors. In fact, no two substances smell exactly alike and the current understanding of smell discrimination means that there is an infinite number of odors to which we would be sensitive.
To keep your nose healthy-don't rub it vigourously,it damages the delicate hair and can worsen your early morning seezing bouts.
Eliminating toxins out as soon as you wake up early morning helps control your sneezing.Never control your natural urges.

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