Have you ever noticed that when you look at your fingers in a long time then you feel any foreign object in front of your eyes? Looks weird is not it? The same goes for some of the daily activities you do. For example, when you see funny things and then suddenly you yell like spasms or what is known as laughing and you spend a third of your time each day in such circumstances is known as a corpse or sleep.

With a little reflection then over time you will think this behavior seems to be really weird. It was not just laugh and sleep, there’s 8 other things that you normally do all the time but it feels weird and why you’re doing as reported from lifeslittlemysteries:

1. cry

Strange if grief can cause water to spill over our eyes. Moreover among all kinds of animals, only the men that shed tears of emotion. The presence of the tears were not only intended to communicate the feelings of depression, but scientists also believe it brings tears of certain hormones and other proteins unwanted generated during periods of stress to be removed from the body.

2. Hiccup

Hiccups is a condition of spontaneous seizures that occur in the diaphragm or membrane inside your chest muscles are very important to process your breathing. Hiccups also occur due to impaired diaphragm muscle, usually due to too much or too little food in the stomach. Surprisingly, other than annoying, hiccup was indeed pointless. One hypothesis suggests could be a hiccup is a remnant of the sucking reflex. So no more than a hiccup disorder produced by the body.

3. sleep

Most humans spend about a third of his life to sleep. No human being can survive without sleep for more than a few days and maybe sleep is one of the most activity can not be understood. Sleep is allowing the body to perform “maintenance”, ranging from the production of chemicals that could be used for waking up to the organization of neurons in the developing brain. REM sleep (rapid eye movement) with a high activity of nerves going longer each night during the period of brain growth. Some theories suggest the maintenance of sleep is important for memory and learning. Sleep can also help instill into a kind of episodic memory ‘folder’ long-term storage in the brain and provide a much needed mental break you.

4. death

Technically, death is not something to do everyday. But many people are dying every day. The reason is, people die because these cells in the body die. Although cells were able to update itself during repetitive, but the cells can not do it forever. Inside each cell, there are telomeres that contain genetic information that will always be truncated during cell division. Telomeres are able to handle it for long but will be depleted cells (no more to be cut), carry information disappeared and the cells can not divide again. Therefore, many scientists began to think to prolong human life and hope that one day could extend the average human being to be double that.

5. embarrassed

Apparently the reaction of kememerah rosy cheek is a universal human response to the presence of social concern. Everyone can do it, even some people can do it more often than others. The trigger condition is met blushed none other important people, receiving praise and experiencing strong emotions in a social situation. Blushing is the biological mechanism of the veins on the face widened so that more blood flow to your cheeks and produce redness. But scientists are still puzzled why it happened and what is its function.

6. smooch

For some people, it’s strange kissing, especially if the activities involving the exchange of saliva was practically romantic. Apparently it is a biological instinct. Kissing allows people to use the aroma and flavor as the assessment of potential partners. Breath of saliva can carry chemical signals that indicate the condition of the person healthy or sick. Especially for women, kedu chemical signals that indicate the process of ovulation, an important message that needed reproductive potential partners. In addition, the skin around the nose and mouth of humans coated with oil that contains pheromones, chemicals that provide information about a person’s biological makeup. When someone takes the pheromone of each other while kissing, be aware of where he could determine sexual attraction to each other. Along with chemosensory cues exchanged during kissing, psychologists also believe that the actual physical act of kissing can help form a bond in pairs. This theory is supported by the fact that oxytocin (a hormone that affects a person’s sense of time socializing, love and trust) to flood the brain when the mouth kissing.

7. fart

Facts about the fart may sound nasty, but it does everything you eat or drink gives you gas. Even a normal human being would fart up to half a gallon (1.9 liters) or about 15-20 times a day. Special smell that comes out from fart coming from the colonies of bacteria in our intestinal tract below. In the process of converting food into useful nutrients, bacteria that digest the food it produces hydrogen sulfide gas which smells similar to rotten eggs. Just as with humans, these bacteria most like sweet food digest. Therefore, the natural sugar present in milk, fruits and nuts of course, will produce the most fart.

8. laugh

Laughter is weird. When you see or hear or see something funny, then came a strange feeling that makes you suddenly want to scream while doing movements such as spasms and repetitive. But why do we do? Psychologists think the behavior to respond to something like the laughter serves as a signal to others to spread the positive emotions, reduce stress and contribute to the cohesiveness of the group. For the same reason, chimpanzees and orangutans also smiling and laughing while playing with his flock.

9. flicker

Actually it’s not too weird flashes as a tenth of a second activity that is able to clean the dust particles and provide lubrication to all parts of the eyeball. Scientists have discovered that human brain has a talent for ignoring the fraudulent activities of such a moment. Blinking suppresses the activity in some regions of the brain responsible for detecting changes in the environment so that you can still feel the world around you the same as before.

10. daydream

No matter how hard you try to stay focused on daily activities like brushing your teeth or waiting in line at the coffee shop, you still can not stop your mind not to ‘hover’. Surprisingly, a brief loss of consciousness cognition is actually a good thing. Daydreaming is important to foster creativity and imagination. Neuroscience research shows that humans can increase the level of attention and reduced, even the man claimed to spend 13 percent of their time daydreaming.

11. See

something in 3D Your eyes actually can not produce 3-D effect. This is really just a mind trick. First, the brain utilize the “difference of binoculars” is a small difference between the images seen by our eyes left and right. The brain uses two versions of the tilted toward a scene to reconstruct the depth. For close-up objects or very near, the brain notes the “convergence” eye or the angle in which the object image was swinging through a focus on the object to determine how far the location of the object. When looking at something, be aware you will measure the distance by determining the so-called ‘parallax’. That’s the difference in the speed at which objects closer and farther looked like when you move past it.

12. pins and needles

Tingling may occur when you cross your legs are too long or waking at night with hands that looked like a gradual numbness and feels like an itch. So what actually causes the sensation of “tingling” it? This happens when you put too much pressure on the nerves that inhibit nerve function was for a while. When the nerve is gradually returning to normal, the brain somehow interpret its activity as a tingling sensation or tingling needle.

13. shave

Shaving is common for modern humans, so people are not accustomed to shave certain body parts are considered unattractive. But oddly enough the specified behavior was precisely against this culture of human evolution itself. Moreover armpit and pubic hair evolved to help the pheromone to stay stuck. Though the chemical smell that ‘locked’ armpit and pubic hair is used to attract mates, so it feels weird if you now think of it as the source of odors and trapping the hair worthy to be shaved. Beard also evolved to help women distinguish men from boys, but it shows the maturity of a man and highlight the masculine jaw line. Lately, however, most men chose to shave his beard clean.

14. take the plunge

Risky activities that can be deadly, of course, then why not all people want to sit at home and driven to do dangerous things? Psychologists say the desire to take risks derived from the human need to impress a partner or potential partner. Especially for men, men intraseksual competition more than women, so men have to ‘advertise’ fitness through the sexual exploitation of overt courage. This explains why men tend to take risks, especially when in groups. Although women are generally more risk averse, but everybody instinctively want to try to impress others.

15. making love

Everyone knows that sex is the way humans reproduce. The best explanation of the biological sciences are referred to as the Red Queen hypothesis (Red Queen) states that living organisms and parasites such as race with constantly evolving in response to a genetic mutation to each other and keep his balance. In this theory, sex provides a place for organisms to survive in the evolutionary process by allowing the two organisms to shuffle genes and create new genes in the offspring of a rare combination.