Humans spend a third of their life sleeping. That's about 25 years.
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Sleep Facts: 20 Facts about Sleep you didn't know ←FACTSlides→ - 1 views
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did you now that humnans spend 25 yeras of theire life and cats spend 70% of ther elofes sleeping
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The record for the longest period without sleep is 11 days.
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did you know that the record of a humnan without sleping is 11 fays
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Sleeping less than 7 hours each night reduces your life expectancy.
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did you know that sleping less than 7 hrs evry night can take time of youre life.
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7 Signs Your Child Is an iPad Addict - 0 views
Why do we get sick? - HowStuffWorks - 2 views
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As an example, think of a person who has a cold. That person may cough into his or her hand and then touch a doorknob, thus placing the cold virus on that doorknob. The virus may die on the doorknob, but it's also possible that the next person to touch the doorknob will pick it up. If that person then touches food with the unwashed hand and consumes the food, the virus is now inside the body.
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The earliest physicians thought that illness and disease were a sign of God's anger or the work of evil spirits. Hippocrates and Galen advanced the concept of humorism, a theory which held that we get sick from imbalances of the four basic substances within the human body, which they identified as blood, phlegm, black bile and yellow bile. Paracelsus, a Renaissance-era physician, was one of the first to posit that sickness comes from outside sources, rather than from within.Today, we know that there are two major kinds of diseases: infectious and non-infectious.
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For example, if a person has gotten a cold and sneezes into their hand, then suddenly they touch the light switch, They leave the cold there, it may also be that the cold virus dies there, but it may also be that the next person who touches the light switch gets it in their hands. If they go to eat, and they don't wash their hands and they touch what they are going to eat they get it in their mouth and now they have the cold.
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instaGrok - 0 views
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Nightmares tend to happen during the second half of a night's sleep, when REM intervals are longer. [source]
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Nightmares are rarely prescriptive, meaning they are not signs that something bad will happen.
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Nightmares are frightening dreams that usually awaken the sleeper from REM sleep. [source]
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Mars -- Britannica School - 0 views
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Nevertheless, the search for life on Mars continues, in part because it shows signs of having been wetter in the past. Water is necessary for all known forms of life. It is possible that microscopic life once existed on Mars. Today the surface is too cold and the air is too thin for liquid water to exist there for long. It is also bombarded with ultraviolet radiation from the Sun, which is very harmful to living things.
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Mars is the fourth planet from the sun for years and years there have been sending little robots and machines from NASA to find more information. It has a very little atmosphere to protect it from the sun.
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PETA Asia-Pacific | The Issues | Animals Are Not Ours For Entertainment - 0 views
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Zoos claim to educate people and preserve species, but they usually fall short on both counts. Animals' normal behavior is seldom discussed, much less observed, because their natural needs are rarely met. Even the largest of zoo enclosures cannot compare to the vastness of an animal's natural habitat, and the signs on these enclosures provide little more information than an animal's species, diet, and natural range. The only thing zoos teach people is that it is acceptable to control every aspect of an animal's life.
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