Expert: Dana Krempels, Ph.D. - 8/21/2010

Question
Q:1When a lady becomes pregnant her symptoms like vomiting,
heavy feet,headache starts.Why or how these symptoms appear?
Q:2During parturation period why a baby cries if a baby
doesn't cry then is it harmful to baby?
Q:3How ghooses comes on our body during any emotional thing?  

Answer
Dear Garima,

"Q:1When a lady becomes pregnant her symptoms like vomiting,
heavy feet,headache starts.Why or how these symptoms appear?"

You are describing what is sometimes called "morning sickness."  The causes are not fully understood, and are probably due to an interaction of hormones changing during a woman's pregnancy.  You can read more here:

http://www.babycenter.com/0_morning-sickness-causes-concerns-treatments_254.bc

"Q:2During parturation period why a baby cries if a baby
doesn't cry then is it harmful to baby?"

The "old fashioned" way of getting a baby to take its first breath after birth is to give it a swat on the behind.  A reflexive reaction is for the infant to take a deep breath and start wailing.  

The baby doesn't *have* to cry to start breathing, but this is an easy and sure way for the breathing to start.  The crying is a good sign.  

Genetic factors control the infant's first breath, which you can read about here:

http://www.news-medical.net/news/2004/09/28/5117.aspx

http://www.thaindian.com/newsportal/health/how-babies-draw-their-first-breath_10...

"Q:3How ghooses comes on our body during any emotional thing?"

Do you mean "goosebumps"?  When you get goosebumps on your skin, the tiny muscles associated with your hair follicles contract, lifting the hair and causing the little "pimple" where the hair is anchored in the follicle.  This is an evolutionary remnant of fluffing up the fur in response to fear (when you're in danger, fluff up your fur to look bigger and scarier to whatever is chasing you!) or cold (fluff up the fur to improve insulation).  It's not useful to us in those contexts any more, but it's another bit of evidence that we share common ancestry with species much furrier than ourselves.

Hope that helps.

Dana