Cleaning the ear is to prevent foreign objects into the ear canal. Ear wax is produced by glands in the outer ear to protect the inner ear from infection. This sticky substance that actually prevents dust, dirt, or insects get into the ear. Ear to clean yourself. Dirt will be moved slowly upwards and out of the ears, dry out, then fall off, or washed away when you shampoo. If you shower, wash only the outside of the ear. "Ear canal is like a dead end," said Andrew Cheng, MD, an ENT specialist at Manhattan Eye, Ear and Throat Hospital. "Cleaning the dirt with a cotton bud just make more dirt inside." You also can scratch the ear canal, eardrum or leaking.
Why do we shiver?
Occurs when we are cold chills, or fear. When we are cold, the muscles around the pores to contract, causing the hairs stand up hand to create a layer of exile, according to Richard Potts, Ph.D., anthropologist and director of the Human Origins Program at the Smithsonian Institutions National Museum of Natural History, Washington, DC All mammals are also experiencing this. However, "People do not have enough body hair to respond, it is something that is left behind when we wore a hairy coat," he explained. Potts and his team theorized, that many centuries ago, when the hair on our ancestors enough, they seem much more frightening. "The beast will retreat to find prey that is not so scary," he continued.
Why do teenagers like up late?
This is not because they are lazy. As a child, melatonin, a hormone that regulates sleep-wake cycle-issued glands in the afternoon. Entering puberty (from age 10-14 years), the hormone melatonin is released more slowly, at about 9:00 p.m. to 22:00. "Shift it often makes teenagers are not able to fall asleep before 23:00," says sleep expert teenager, Mary A. Carskadon, Ph.D., who is also director of the Bradley Hospital Sleep and Chronobiology Research Laboratory, in Providence. Because teens are still needed to sleep nine hours or more, they try to 'pay' sleep time was wasted the night before by sleeping until noon. "
Why does our hands and feet often cold?
The nerves that control blood flow to the hands and feet are more sensitive in women than men, "says Mark Eskandari, MD, vascular surgeon at Northwestern Memorial Hospital, Chicago. So once the temperature falls, blood vessels shrink, making blood flow more slowly. " Women also have lower blood pressure than men. When you are cold or stress, and decreased blood pressure, blood is directed to the heart, away from the hands and feet.
Why could joints crack?
When you stretch the joint with, for example, pressing a finger joint or rotating your spine so that the sound of rattling, you can cause air bubbles formed between the bag inside the joint erupted. These pockets help air cushion between the bone and keep it slippery. Joint breakdown is actually not very dangerous. Gritted fingers, ankle, knee, or other joints do not cause arthritis, but also not a good habit. Feel good that people get when grinding body is very psychological in nature, "said James Applegate, a family physician in Grand Rapids, Michigan.
Why do some people have very white teeth?
As well as eye and hair color, natural color of teeth inherited from parents. "Some people have a thin layer of enamel-on-tooth surfaces that are very white, enamel while others have a more yellow color," says Richard Price, spokesman for the American Dental Association. Taking drugs such as tetracycline or amoxicillin antibiotic as a child also affect the calcification process that causes discoloration. Several types of certain foods also darken teeth. Coffee, tea, cola, and red wine are a few of them. If this happens, you should use tooth whitening products or specific treatments.
Why is yawning contagious?
A study published in the latest edition of the journal Cognitive Brain Research states that when you yawn because the infected person is near you is actually a form of empathy you to him. This is the same as if you laugh, and friends, you laugh. Yawning is not only triggered by seeing someone yawn, but also for listening, reading, or even just thinking about yawning, "said Steven Platek, Ph.D., professor of psychology at Drexel University, Philadelphia, who led the study. Platek and his team believed that the contaminated yawning is a way of expressing primitive feelings of others about ourselves.
Why are our heads dizzy while taking ice?
Dizziness occurs when nerves in the palate massively stimulated by food or drinks cold. The nerves do exist in the mouth, but there are nerve centers in the brain, so that's where you feel pain. Then why do people feel the pain in one place, whereas stimulus elsewhere? Seymour Diamond, MD, Executive Chairman of the National Headache Foundation, says, "Eat or sip drinks slowly seems to reduce the effects of cold. So getting dizzy, the fastest way to eliminate them is to drink something warm."
Are carrots are good for the eyes?
According to Michael F. Marmor, an ophthalmology professor at Stanford University School of Medicine, carrots and all foods containing vitamin A is good for the eyes. For example vegetables red, yellow, orange, and green, including cassava, mangoes, and papayas, as well as eggs and liver. The body uses vitamin D to support the nerve cells in the retina that helps maintain normal vision. People who lack vitamin A commonly experience vision problems, such as night blindness.
Why do we hiccup?
Excess food, alcohol, pleasure, or stress, can stimulate the phrenic nerve, which controls the diaphragm (the muscle layer that controls breathing). The diaphragm is then contracted. At the same time, the glottis (part of the larynx where the vocal cords are) closed so that covers the course of the air, according to Patricia Raymond, MD, a gastroenterologist in Chesapeake, Virginia. When that happens hiccups every few seconds. Normal hiccups occurred several minutes, but in other cases too much longer. The fix, among others, by holding their breath while swallowing saliva, or breathe in a paper bag.
Occurs when we are cold chills, or fear. When we are cold, the muscles around the pores to contract, causing the hairs stand up hand to create a layer of exile, according to Richard Potts, Ph.D., anthropologist and director of the Human Origins Program at the Smithsonian Institutions National Museum of Natural History, Washington, DC All mammals are also experiencing this. However, "People do not have enough body hair to respond, it is something that is left behind when we wore a hairy coat," he explained. Potts and his team theorized, that many centuries ago, when the hair on our ancestors enough, they seem much more frightening. "The beast will retreat to find prey that is not so scary," he continued.
Why do teenagers like up late?
This is not because they are lazy. As a child, melatonin, a hormone that regulates sleep-wake cycle-issued glands in the afternoon. Entering puberty (from age 10-14 years), the hormone melatonin is released more slowly, at about 9:00 p.m. to 22:00. "Shift it often makes teenagers are not able to fall asleep before 23:00," says sleep expert teenager, Mary A. Carskadon, Ph.D., who is also director of the Bradley Hospital Sleep and Chronobiology Research Laboratory, in Providence. Because teens are still needed to sleep nine hours or more, they try to 'pay' sleep time was wasted the night before by sleeping until noon. "
Why does our hands and feet often cold?
The nerves that control blood flow to the hands and feet are more sensitive in women than men, "says Mark Eskandari, MD, vascular surgeon at Northwestern Memorial Hospital, Chicago. So once the temperature falls, blood vessels shrink, making blood flow more slowly. " Women also have lower blood pressure than men. When you are cold or stress, and decreased blood pressure, blood is directed to the heart, away from the hands and feet.
Why could joints crack?
When you stretch the joint with, for example, pressing a finger joint or rotating your spine so that the sound of rattling, you can cause air bubbles formed between the bag inside the joint erupted. These pockets help air cushion between the bone and keep it slippery. Joint breakdown is actually not very dangerous. Gritted fingers, ankle, knee, or other joints do not cause arthritis, but also not a good habit. Feel good that people get when grinding body is very psychological in nature, "said James Applegate, a family physician in Grand Rapids, Michigan.
Why do some people have very white teeth?
As well as eye and hair color, natural color of teeth inherited from parents. "Some people have a thin layer of enamel-on-tooth surfaces that are very white, enamel while others have a more yellow color," says Richard Price, spokesman for the American Dental Association. Taking drugs such as tetracycline or amoxicillin antibiotic as a child also affect the calcification process that causes discoloration. Several types of certain foods also darken teeth. Coffee, tea, cola, and red wine are a few of them. If this happens, you should use tooth whitening products or specific treatments.
Why is yawning contagious?
A study published in the latest edition of the journal Cognitive Brain Research states that when you yawn because the infected person is near you is actually a form of empathy you to him. This is the same as if you laugh, and friends, you laugh. Yawning is not only triggered by seeing someone yawn, but also for listening, reading, or even just thinking about yawning, "said Steven Platek, Ph.D., professor of psychology at Drexel University, Philadelphia, who led the study. Platek and his team believed that the contaminated yawning is a way of expressing primitive feelings of others about ourselves.
Why are our heads dizzy while taking ice?
Dizziness occurs when nerves in the palate massively stimulated by food or drinks cold. The nerves do exist in the mouth, but there are nerve centers in the brain, so that's where you feel pain. Then why do people feel the pain in one place, whereas stimulus elsewhere? Seymour Diamond, MD, Executive Chairman of the National Headache Foundation, says, "Eat or sip drinks slowly seems to reduce the effects of cold. So getting dizzy, the fastest way to eliminate them is to drink something warm."
Are carrots are good for the eyes?
According to Michael F. Marmor, an ophthalmology professor at Stanford University School of Medicine, carrots and all foods containing vitamin A is good for the eyes. For example vegetables red, yellow, orange, and green, including cassava, mangoes, and papayas, as well as eggs and liver. The body uses vitamin D to support the nerve cells in the retina that helps maintain normal vision. People who lack vitamin A commonly experience vision problems, such as night blindness.
Why do we hiccup?
Excess food, alcohol, pleasure, or stress, can stimulate the phrenic nerve, which controls the diaphragm (the muscle layer that controls breathing). The diaphragm is then contracted. At the same time, the glottis (part of the larynx where the vocal cords are) closed so that covers the course of the air, according to Patricia Raymond, MD, a gastroenterologist in Chesapeake, Virginia. When that happens hiccups every few seconds. Normal hiccups occurred several minutes, but in other cases too much longer. The fix, among others, by holding their breath while swallowing saliva, or breathe in a paper bag.
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