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St. Paul, Minnesota, men and women are actually born with the same tear production.Only after the age of 18 years of production they are different, more women shed tears.
Before you reach puberty, the volume average is the same but after passing the age of 18 years of women produce more tears than men.
The difference is because tear production is heavily influenced by the hormonal cycle.Once past the age of 18, women produce estrogen and prolactin (2 hormones that affect the production of tears) 60 percent more than men.
In addition to a different volume, its chemical composition is also believed to be different although no studies that confirm this. Presumably, emotional factors difference between men and women affect the biochemistry of the brain and affects the composition of tears is secreted.
Biochemist from Ramsay Dry Eye and Tear Research Center in Saint Paul, Minnesota, William Frey II, doing research for almost 10 years specifically to uncover the facts surrounding the tear.
Quoted from Boston.com on Monday (1/10/2011), William explains humans produce tears at all times to keep the humidity of the eyeball so not only when to cry. Humans also shed tears when there are certain stimuli such as dust or steam garlic.
There are 3 types of tears produced by human tears namely basal, reflex or irritant tears and emotional tears. Basal tears keep moisture eyeball functions and are produced continuously, reflex tears are produced when there is irritation while emotional tears are produced when sad or hysterical.
All three have a different chemical composition, so that the experts believe there are many interesting things that could be expressed from any kind of tears that dripped. One of them revealed in a recent study that emotional tears especially those produced by adult women can lower male sex drive.
University Park, Pennsylvania, when people fall in love often hormonal pheromones become suspect. The hormone that triggers attraction to the opposite sex is so reliable as the cause. But it was a result of the hormone human love this one just a myth.
This hormone is certainly only work on animals, especially insects that are attracted to the opposite sex. Which pemikatnya compounds called pheromones that became the trigger.
The hormone pheromone is specific compounds produced by insects, to produce a distinctive odor that can attract couples when it comes time to mate. The existence of pheromones in insects and some plant species have been scientifically proven.
While in humans, a new pheromone is known around the 1950's. At that time many scientists believed that prior to having an interest at first sight, one would first thrilled by the scent of her partner's body.
But the allegation is disputed by Richard Doty, a researcher from Penn State University's School of Medicine. Over the years, he learned the secret behind pheromones and concluding that humans are not affected by the pheromone.
In his book "The Great pheromone Myth", he says the human sense of smell is not as simple as that possessed by insects. Interpretation smells occur in the brain, whereas human behavior in choosing a mate is more influenced by the environment and current conditions fell in love.
In fact, not only humans, nearly all species of mammal or mammalian pheromones do not need to get a pair. Doty did not believe if the interpretation of odors could affect behavioral changes in mammals.
"The concept of pheromones in humans may only appeal to the perfume industry and those who want to do anything to stay young," Doty said as quoted by the Dailymail, Monday (06/12/2010).
But Doty trying to understand if many people are so convinced the concept of pheromone. He considered human beings do have a tendency to believe something that is not concrete to explain things that are beyond reason, including how the process falls in love.
Emotions and moods are influenced by hydration status or balance of body fluids. When the body loses more fluid and less balanced with a lot of drinking, unruly emotions so that people become irritable and angry.
This was revealed in research by two neurologists from the University of Connecticut, Lawrence E Armstrong and Harris R Lieberman. The study, published in 2009 involving 26 male and 25 healthy women who were told to exercise 3x40 minutes in a room temperature of 28 degrees Celsius.
The participants were conditioned not to much to drink, although the activities carried out to make her very sweaty. Hydration level of the participants were measured for each interval of rest, and then compared with psychiatric status and thinking abilities as measured by psychological test.
The ability to think seems to have decreased over the increasing number of body fluids lost through sweat. At the level of dehydration or loss of body fluids 1.5 percent in men and 1.3 percent in women, the ability to remember and keep the concentration decreased significantly.
Meanwhile, the impact of reduced body fluids is also observed in mental and psychiatric status. At the level of hydration, both men and women began to feel tired mind, confused, agitated and prone to stress.
Nutrition science lecturer Faculty of Medicine, University of Indonesia, Dr. Dr. Dr.Saptawati Bardosono, MSc or used to be called dr Tati said the phenomenon is the impact of mild dehydration. Mild dehydration is characterized by loss of body fluids is less than 10 percent.
"Hence, if co-workers began to get angry, just suggest to drink. Maybe he's just not drinking," said Dr. Barbara in a press conference themed "Beware The Performance Impact of Dehydration Lightweight, Cognitive and Mood" at Hotel Le Meredien Jakarta, Wednesday (9 / 2 / 2011).
Although only affects the mind and psychiatric mental status, the impact of mild dehydration can reduce productivity. Someone who suffered mild dehydration becomes unproductive because it is easy to panic, anxiety, irritable and angry.
At this level, dehydration is not causing clinical symptoms such as dizziness, headache and convulsions. The clinical symptoms would occur if the dehydration is allowed to continue without treatment.
Fluktatif dehydration or recurrence-kumatan also have an impact on psychiatric mental status. According to Dr. Tati, fluctuate dehydration can cause hallucinations (hearing voices), delusions (seeing strange things) and lose the ability to focus.
St. Paul, Minnesota, men and women are actually born with the same tear production.Only after the age of 18 years of production they are different, more women shed tears.
