7 Benefits of Body Hair That You Didn't Know

Thing are not as useless as they appear. There are certain things that we do not know the details of, but it does not mean that those have no purpose in them. It is only our lack of knowledge that the science has not discovered any good use for them so far. We notice that scientists are still working on things that are already known and are making new discoveries every day discoveries. With the advancement in technology, new aspects of already discovered things are being explored.

Hair on human body is one such thing. Besides head, eyebrows and eyelashes, hair on the rest of the body are considered unnecessary and are always unwanted. Every effort is made to get rid of them. Here are some interesting details about human hair on different parts of the body.

1. Body hair work like receptors. Scientists have experimented that people with more body hair are better bedbug detectors. Twenty-nine students were part of this experiment. Arms for half of them were shaved to verify how long it would take to detect bedbugs placed on their arm. The researchers found that body hair enhanced the ability to detect bugs on the body quickly. Thus, the hairs served as motion detectors.
2. Hair on the head serve multiple purposes. People have different types of head hair, some have short curly hair, while others have long hair styles. Their colors also vary ranging from black hair to brown. In addition to making your personality attractive by different hairstyles as well keeping the barbers employed who are involved in different hair makeover, they protect our skull from extreme cold or heat. They also help the skull to respire.
3. Hair on the eye brows are not only a thing of beauty. They are specially designed in a way that all of them lay down in the same direction i.e. starting from the mid of the face downwards. The special arrangement is helpful and is actually a protection for eyes against the perspiration or any other liquid coming down from the head. The liquid does not come down straight to the eye, rather changes its direction due to the hair on the eyebrows and passes from the sides.
4. Hair on the eyelashes protect the eyes against dust particles and other microscopic organisms from entering the eye. They are actually our first line of defense against bugs, dust and other irritating objects.

15 Interesting Things About Skin That You Didn't Know

Anatomy of Human Skin

Humans have been created in the best of form and shape. There are so many systems running simultaneously in our body that we are seldom aware of all of them. Some of them are under our conscious control while most are working on their own based on the requirements of the body. Beautiful skin is one of such organs of the body that seems simple but actually performs a lot of functions. Some of them are:

1. Skin is a unique organ of the body that covers all other organs. It is the largest of all the other sense organs and is not as simple as it looks. There are numerous systems attached to this organ and these all work in a coordinated fashion to aid the body in performing its functions smoothly. 
2. As mentioned, it is the largest sense organ of human body and measures up to two square kilometers when stretched. By weight, it comprises about 15% of the body weight.
3. Skin is the first defense line of the body against any foreign objects including virus and bacteria. It performs different important functions for the body that makes us to live easier and healthier. Skin always plays its role in keeping you healthy. You might not be noticing it but your skin is working all the time for that.
4. Based on the climate, the skin helps to regulate body heat. In case of severe heat, perspiration helps to cool down body temperature while in extreme cold the shivering action of the body produces heat to cover the lack of heat in the body.
5. Human skin consists of three layers. The out one is epidermis, which is composed of dead cells and is waterproof. The middle layer is dermis that contains sweat glands and hair. The lower most layer is sub-cutis having fats and larger blood vessels attached to it.
6. Not all skin in every part of the body is same. It depends on the location. The thinnest skin is on the eyelids (about 0.02 mm) while the thickest skin is under the feet (1.4 mm)
7. Dead out layer of the skin and fingernails is formed by keratin, which is a kind of protein.
8. This organ of the body works continuously and renews itself in the cycle of 28 days.
9. Sweat produced through the skin is actually odorless. It is the bacteria present in the skin that contribute to the bad smell of the sweat.
10. The glands producing wax in the ear sweat glands specialized for this purpose.

12 Interesting Things About Sleep That You Didn't Know

Man has been given countless blessings by the Creator. Some of them are the ones that we seldom realize to be a blessing. Sleep is one of such things. It has positive effects on our body when taken properly. Lack of sleep causes many complications. You can read the complete list of the benefits of sleep we all enjoy. Here I am going to list down some interesting aspects of sleep. I am quite sure most of the readers are seldom aware of these facts.

1. If we calculate the total time of our sleep throughout our entire life, it makes up about one third or our life. If the average human life is believed to be 75 years, we spend 25 of these years sleeping. And interestingly, that is quite necessary.
2. When a baby is born, parents sleep routine is disturbed. The mother suffers the most. At an average, six months of sleep of the parents is missed out in the first two years of their baby’s life. Children should be more respectful to their parents as they sacrifice a lot in bringing them up. You can read further, why we should respect our elders.
3. The minimum sleep recommended by scientists is 7 hours per 24 hours. It is believed if the sleeping time is continuously reduced than recommended; the total life expectancy is also affected badly.
4. If you do not have your complete sleep on regular basis, it could add to gaining weight. The process could be as fast as gaining 2 pounds of body weight in less than a week. This is quite fast actually.
5. This is also interesting to know that human can live without eating anything for about two months but the maximum time they can live awake is 11 days. They are bound to sleep after that or their life would be in danger. This proves that sleep is even more important than the diet.
6. Japanese have very interesting working habits. They know the body chemistry well. That is why sleeping at working hours is acceptable in japan. This actually shows that the person is exhausted by hard word and needs to have a break.