Stay cool while eating

Copied from "What every Body is saying"
Did you ever wonder why you get an upset stomach if there is an arguement at the dinner table? When you are upset, your digestive system no
longer has as much blood as it needs for proper digestion. Just as your
limbic system’s freeze, flight, or fight response shunts blood away from
the skin, it likewise diverts blood from your digestive system, sending
blood to your heart and limb muscles (especially the legs) to prepare for
your escape. The upset stomach you feel is a symptom of that limbic
arousal. The next time an argument ensues during a meal, you will recognize the limbic response of distress. A child whose parents fight at the
dinner table really can’t finish his meal; his limbic system has trumped
alimentation and digestion to prepare them for escape and survival. Along
these lines, it is interesting to note how many people vomit after experiencing a traumatic event. In essence, during emergencies the body is
saying that there is no time for digestion; the reaction is to lighten the load
and prepare for escape or physical conflict (Grossman, 1996, 67–73).

Fake and real smile

Can u distinguish between a fake smile and a real smile. Its easy.

A real smile appears primarily because of the action of two muscles:
the zygomaticus major, which stretches from the corner of the mouth to
the cheekbone, and the orbicularis oculi, which surrounds the eye. When
working together bilaterally, these draw the corners of the mouth up and
crinkle the outer edges of the eyes, causing the crow’s feet of a familiar
warm and honest smile.
On the other hand When we exhibit a social or false smile, the lip corner stretches sideways through the use of a muscle called the risorius.
(Information taken from book "What every Body is saying" by Joe Navarro, page number 186)

Recently a news about minor boy's pregnancy was circulated... Have a look...

Following post is directly copied from google.
"It is very surprising and unbelievable news that a 6-year-old boy was pregnant, the doctor has removed the undeveloped fetus from his stomach.
This phenomenal incident is from Varanasi.
Ramesh's father, a resident of Gadwa in Jharkhand, said that for the last few days, there was a lot of pain in the baby's stomach and for quite some time he did not eat anything properly and was becoming more weak
Firstly, he was treated at the BHU,, he did not get any relief, he was shown in a private hospital. In the initial investigation, the doctors told him to be tumor in the stomach and said to do the operation to remove the knot. But when the operation started, the doctors got shocked, that thing which looked like a knot was an undeveloped fetus which was removed after 2 hours of operation. This is the first case of such a small child being pregnant.
Doctors believe that this is the case with any one of the children in 5 lakh children and this is possible. It is called Turo Thieri, in which two mothers have fetuses in a mother's womb, but develops only one, and that undeveloped fetus goes into the child's stomach. And slowly starts to grow. Doctors told that this is such a case in India, even before 9 such cases have been reported.
After listening to the fetus's hearing in the baby's womb, the senses of the family got swept away and they were not convinced, but after understanding the whole cats, the families were satisfied. Doctors told that the child was becoming weak because of this, but now everything is fine."

Artificial womb for LAMBS

Hello friends! I just read a news from online edition of "Indian Express" about a research. According to the said news scientists have created an artificial womb for lambs which would be beneficial in case of Premature birth.
I would like to copy the news content directly to share it with my viewers.
"In a bizarre turn of events, scientists have come up with an artificial womb resembling a plastic bag which can help keep premature lambs alive for four weeks outside of their own mothers’ wombs and could one day be applied to premature babies.
The sealed bag which is made of polythene, mimics the environment of a natural womb. Containing amniotic fluid, it provides all the nutrients and protection needed for growth and also acts as a proper interface delivering oxygen just as an umbilical cord would, and exchanging gases just like a placenta would.

According to CNN, Dr Alan Flake who led the research and a fetal surgeon and director of the Center for Fetal Research in the Center for Fetal Diagnosis and Treatment at Children’s Hospital of Philadelphia said, “We’ve developed a system that, as closely as possible, reproduces the environment of the womb and replaces the function of the placenta. This, in theory, should allow support of premature infants.”
The group of scientists worked with five premature lambs aged 105 to 111 days, as they are developmentally similar to a human fetus at 23 weeks and also also experimented with three lambs that were slightly more mature, age 115 to 120 days.
After the experiment, the team at Children’s Hospital of Philadelphia is now planning to refine the system by downsizing it for human infants and developing the ideal amniotic fluid for human use. This move is to meet the unmet needs of extreme prematurity but it will take time."

Facts about Human Heart

1. The “thump-thump” of a
heartbeat is the sound made by the
four valves of the heart closing.
2. The heart does the most physical work of any muscle during a lifetime. The power output of the heart ranges
from 1-5 watts. While the quadriceps can produce 100 watts for a few minutes, an output of one watt for 80
years is equal to 2.5 gigajoules.
3. The heart begins beating at four
weeks after conception and does not stop until death.
4. A newborn baby has about one
cup of blood in circulation. An adult human has about four to five quarts which the heart pumps to all the tissues and to and from the lungs in about one minute while beating 75 times.
5. The heart pumps oxygenated
blood through the aorta (the largest artery) at about 1 mile (1.6 km) per hour. By the time blood reaches the capillaries, it is moving at around 43 inches (109 cm) per hour.

Facts you should know

Hello friends and dear students here are some biological facts....
Have a look...
1. Fingernails grow four times faster than toenails
2. Right handed people live, on average, nine years longer than left-handed people
3. If you rub an onion on your foot – within 30 – 60 minutes you will be able to taste it – this is because it travels through the blood stream
4. You can’t kill yourself by holding your breath (if you hold it until you go unconscious, you begin to breath normally as soon as you do)
5. On one square inch of human skin there are 20 million microscopic creatures
6. Armadillos are the only creatures apart from men that can catch leprosy – there are known cases of armadillo to human transfers of the disease
7. A snail can sleep for 3 – 4 years – during which period it does not need food
8. Giraffes can live longer without water than camels
9. The songs of humpback whales can change dramatically from year to year, yet each whale in an oceanwide population always sings the same song as the others
10. The forces required to remove a foot from quicksand at a speed of one centimeter per second would require the same amount of force as “that needed to lift a medium-sized car.”
11. To test if a pearl is real, you can rub vinegar on it – the composition of the pearl will cause it to bubble furiously
12. Goldfish kept in a dark room turn much paler – and if it wasn’t for the color in the food they eat, they would turn completely white
13. Unlike normal bees, the Queen bee’s stinger is not barbed and can be used repeatedly without harming her
14. Quicksand doesn’t directly kill humans as it is usually not very deep at all – it is the fact that it can be incredibly difficult to remove yourself from quicksand that causes death by the environment – such as exposure.
15. Oysters can change between being female or male