HOMEOSTATIC MED4U

First of all,sleep is divided into two categories based on our eye movement: 1. Rapid Eye Movement (REM) 2. Non - REM During REM,your eye tends to move around in all directions and brain activity is very much similar to when you are awake. At this stage only,dreams tend to occur the most. This sleeping phase is usually encountered 90 min after our sleep and stays maximum for an hour. During the REM cycle,our heart rate increases,breathing becomes irregular and most significantly,our skeletal muscles get paralysed. Waking up before the completion of REM cycle can lead to sleep paralysis. Now,coming to the point,why do we dream? Well,I'm actually not sure. But these may be some possible reasons for dreams: 1. Dreaming helps us form memories. In the sense,we have more dreams when we learn something new. Also,according to this theory,dreams helps convert short - term memories into long - term ones. 2. When we are awake,our brain is busy in dealing with many activities and the

Many say mobile phones cause cancer. But they do not. If mobile phones increase the risk of brain tumors,then more and more people would not be developing them. In 2011,the International Agency for Research on Cancer classified mobile phones as a possible cause of cancer. Some studies have shown some links between usage of mobile phones and brain cancer. But larger studies have shown no links between mobile phones and cancer. The radio frequency electromagnetic radiation that mobiles receive is very weak. This radiation does not have much energy to damage the DNA,and definitely cannot directly cause cancer. There's no good evidence that WiFi causes cancer. Just like mobile phones,even WiFi uses radio waves to send information. The radio waves produced by WiFi have much lower power,lesser than that of mobile phones too. Well,some studies say that there is a link between magnetic fields given off by power lines and childhood leukaemia,but there won't be a strong evidence. Powe

Well,there is something called Adderall. It is the brand name for a mixture of amphetamine salts that was developed for treatment of attention deficit/hyperactivity disorder. Many use Adderall even without the doctor prescribing it. Since it is closely related to amphetamine salts,therefore it is a close relative of methamphetamine also,commonly known as meth!  When Adderall is ingested,it takes effect on the brain within an hour. Adderall affects neuroreceptors in the central nervous system,increasing the levels of dopamine and serotonin. In patients suffering from ADHD,genetic studies have indicated that these individuals may have dysfunctional dopamine release. Because of lack of dopamine,the brain will constantly seek out stimulants,resulting in getting distracted often,commonly seen in ADHD patients. The Adderall releases the dopamine and serotonin that overcomes this deficit in ADHD patients,causing increased focus and making them feel less distracted. Adderall also causes th

Alpha - 1 Antitrypsin Deficiency is basically a rare hereditary condition which often leads to a decrease in the circulating AAT levels,which leads to an increase in the risk of a liver disease in adults and even children,but some aspects have still remained unresolved. The main problem is that AATD is underdiagnosed. The symptoms of AATD deficiency can range from a small scale to a large scale such as: 1. Weight loss 2. Tiredness 3. Wheezing and shortness of breath 4. Rapid heartbeat upon standing 5. Vision problems 6. Repeated lung infections Some people do not have any symptoms. Genetic tests and blood tests can tell if you have it. If you experience repeated lung infections,you must probably take lung tests too. Extra oxygen and medicines can be used for treating this. Sometimes,the severe causes may even cause a lung transplant. And smoking and drinking alcohol must come to an end if you do not want such things in your body.

There is only one human disease,and there are not thousands of different diseases. Now, its obvious that many of you will come up with HIV and influenza as two different diseases,but the truth is HIV virus has never been seen till present. It's just an assumption of virus or a hypothesis. Most diseases are tested using a symptom based formula for determining which disease you have. Viral loading is used for HIV. This viral loading is determined in a simple way. Well,first,a blood sample is taken and put in a blender,and at last,the result is filtered. Then the particles of a certain size are said to be 'viruses'. Just because a particle of matter is of a certain size,it doesn't make it a virus. It is well known that if we avoid some chocolates or anything else,we will never get a 'cold','flu' or 'influenza virus.' Well that's because there are no viruses. The bacteria in the gut can leak into the blood stream by a problem called leaky gut

Well,when an apple is cut,one of it's plant tissue becomes injured. When oxygen is present in cells,the polyphenol oxidase enzymes in the chloroplasts oxidise phenolic compounds rapidly which are naturally present in the apple tissues to brown coloured secondary products. It is then reacted to form compounds with amino acids or proteins,or sometimes they self assemble to make polymers,giving the brown colour. Sometimes,we wonder - why some apples become brown faster than the others? Well,it is because different apple varieties contain different levels of polyphenols,and therefore some brown faster than the others. It is the same case for pears and bananas too. And another interesting fact is that this enzymatic browning is also responsible for the dark colour of coffee,black tea,and cocoa.  If you want to reduce the browning of your apple slices,you can probably try the following: 1. Keep the slices refrigerated to slow down the reaction. 2. Coating them with lemon juice can p

Marijuana can be used for treating nausea caused by cancer, chemotherapy,poor appetite and weight loss caused by HIV,etc. Our body already makes Marijuana like chemicals that affect inflammation,pain,etc. but Marijuana can sometimes make those natural chemicals work better. Medical marijuana can be used as a liquid extract,heated until the active ingredients are released provided no smoke comes out,or it can even be eaten by putting it in cookies. Well there are some side effects of using marijuana such as dizziness,short term memory loss and drowsiness, but they don't last long. More serious side effects include severe anxiety. When using it,it is more likely that you don't know of it's potential to cause cancer and its side effects. So its better not to use it until you have got it prescribed by your doctor in a card. People under the age of 18,pregnant women, and people with heart disease should be more resistant to marijuana.