Sleep is a naturally occurring state in which the body becomes unconscious and sensory activity is suspended for a time to allow the body to rest and recuperate. Voluntary muscles are also in a state of inactivity. It is during sleep that the body grows and repairs the immune, nervous, skeletal and muscular systems. All mammals, birds and most reptiles, fish and amphibians enter a state of sleep in a cyclic pattern. In humans sleep is controlled by the circadian clock. The circadian clock is the internal time keeper of our body and regulates the release of hormones that enable us to sleep and stay awake. The amount of sleep one needs depends on your age. Adults generally need less sleep than children and infants.
Although many of us did not live through the Great Depression, we are well aware of the effect that it had on the world. Millions of people were left homeless and without jobs as the economic markets of the world crashed. Many people lost all their money as banks closed and unemployment rose to a record high. It started in late 1929 and most countries did not recover until the early 1940’s. International trade dropped dramatically and most commodities become worth very little. It was a difficult time to live through and still effects the way that we view the economic market today.
Whales are large marine mammals that live in the oceans of the world. There are two distinct types of whales, the toothed whales which include killer whales, dolphins, porpoises, sperm whale, pilot whale and the beluga whale. The second type of whale is the baleen whales; this includes species such as blue whale, humpback whale, bowhead whale and minke whale. Whales all have two large fins and a fluke tail. Whales also have the characteristic blowhole on the top of the head. Whales range in size from 11ft to 115ft long.
Hemp is a soft fiber that is obtained from the cannabis plant. Hemp is well known for its use as the drug marijuana (also called pot) but, also has many other non-drug related uses. Hemp is an extremely environmental friendly crop and is high yielding. It is native to central and southern Asia. Much of the hemp that is used for non-drug related purposes has been modified to lower its psychoactive molecules such as tetrahydrocannabinol (THC). The following are the most common uses of hemp in the world today.
Heather Graham is a celebrity actress who had a passion for acting from a young age. She had a strict upbringing which has sometimes clashed with her acting career. After graduating high school she enrolled at UCLA, but she dropped out to pursue a full time acting career. She received much critical acclaim for her role in the movie “Drugstore Cowboy” in 1989, but it wasn’t until 8 years later that she had her true breakthrough role in the movie “Boogie Nights.” Her career quickly gained steam, but she never truly reached the heights that many expected of her. The following is a list of movies that Heather Graham has acted in during her career.
The armadillo is a small mammal that has a tough leathery covering instead of fur. They have sharp claws that they use for digging and a low body temperature of 33–36 °C.There are 20 species of armadillo and they are all native to the Americas. An armadillo is generally around 30 inches (75 cm) in length, but the Giant Armadillo can grow to 59 inches (150cm) in length. The smallest armadillo is the Pink Fairy Armadillo which has an average length of 5-6 inches (12-15 cm). The only species of armadillo to live in the United States is the Nine-Banded armadillo and it can be found predominately in the central southernmost states.
Memory is our ability to store, retain and recall experiences and information. We have both and short term memory and a long term memory. Memory is a funny thing; two people can live through the same event yet have very different memories of what actually occurred. Some days you can remember every detail of a person’s face and on other days it is difficult to bring to mind that same person. Some people have memories that are photographic, whilst others have sketchy memories at best. Not a lot is known about how memory works and why we recall some things and not others. What we do know is that part of the brain is responsible for storing, retaining and recalling the information we have learned and the experiences we have lived through. So, which part of the brain controls memory? Read on to discover the answer.
A dam is a large barrier built across a river or stream to confine and utilize the flow of the water. Often they are used in the generation of hydroelectricity. The water is directed across a series of turbines before being released out of the other side of the dam. A dam traps large amounts of water and create a reservoir or lake. This water can then be diverted for irrigation of crops or stored and used as drinking water. It can also be used to control flooding as it is able to be diverted elsewhere or released slowly.
Humans have two small, bean-shaped organs that are known as the kidneys. The kidneys are located in the small of the back near the vertebral column. They are generally about 4 inches (10 cm) long and about 2 ½ inches (6.4 cm) wide. The kidneys are part of the renal system. Interestingly, humans can survive with only one kidney. Kidneys are often donated to those who are diagnosed with kidney disease or failure and require a kidney to live.
As cities all over the world grow in size and population it is inevitable that they also grow in crime rate. Theft, murder, drugs, corruption and the like multiply as more people live closer together. The impact of the global economic situation means fewer jobs and more people looking for a way to survive. Whilst cities are often highly recognized for their beauty, wealth, art or night life it is often not common knowledge which cities have the highest crime rate. So which of the cities in the world hold the infamous titles of having the highest crime rate? Read on to find out.