Mathematical Models used to explain sleep

Mar 04
2010

Mathematical Models used to explain sleepWe all know that all people need to sleep. But, what happens during sleep, and why we need to sleep at all. Some people would say to get some rest.” But, this doesn’t hold when looking at the issue from a biological point of view. True enough, over the years, scientists have determined that sleeping helps clear our mind, get rid of useless data, and consolidate important moments and experiences, but some of the most difficult questions related to the subject still remain unanswered. Now, researchers at the Rensselaer Polytechnic Institute (RPI) take a new approach to answering them, ScienceDaily reports.

Rather than conducting sleep studies, direct observations on sleeping test subjects, or brain scans, they are attempting to create a mathematical model that would be able to provide other investigators with accurate predictions of how changing certain external factors would influence sleep quality. Environmental, medical, or physical changes around an individual will affect his or her sleep, many experts already know.

The computer simulation is being developed by RPI mathematics professor Mark Holmes, who is working together with Lisa Rogers, one of his graduate students. They also plan to include data that would give investigators more indications of how the dynamics of the sleep-wake cycle function, and what the effects of disturbances in this cycle may be. They wanted to create a very interdisciplinary tool to understand the sleep-wake cycle. They based the model on the best and most recent biological findings developed by neurobiologists on the various phases of the cycle and built our mathematical equations from that foundation. This has created a model that is both mathematically and biologically accurate and useful to a variety of scientists.

potential danger of herbal medicine

Feb 24
2010

potential danger of herbal medicineA new pathological research has announced that herbal medicine can lead to unwanted deaths, especially in people who consume too much of their natural remedies, or who combine such substances with prescription medication. Professor Roger Byard of University of Adelaide forensic pathologist underlines the fact that many herbal chemicals have very toxic compounds inside, which can kill an adult on their own when taken in excessive quantities, or when combined with other chemicals from other drugs.

“There’s a false perception that herbal remedies are safer than manufactured medicines, when in fact many contain potentially lethal concentrations of arsenic, mercury and lead. These substances may cause serious illnesses, exacerbate pre-existing health problems or result in death, particularly if taken in excess or injected rather than ingested,” the expert explains. Ill-effects also occur when normal drugs are consumed at the same time.

Among the most common complications that occur when combining herbal and classical medicine, the group includes cardiac, renal and liver failure, strokes, seizures and muscle failure, to name just a few. “Herbal medicines are frequently mixed with standard drugs, presumably to make them more effective. This can also have devastating results,” Byard adds.

list of healthy weight loss programs

Feb 16
2010

list of healthy weight loss programsNowadays, there are too many fad diets that place too little importance on health and more on achieving impressive results over a very short period of time. We should understand that a healthy diet means, a change in lifestyle, and a change that means we stop eating foods that are bad for us and have them replaced with something healthier and lighter in calories.

Below are the lists of healthy diets:

The Structure House Weight Loss Plan is one such diet. This diet has been around for 30 years and it includes one element often overlooked with other such plans: exercise.

The Step Diet, another diet that combines healthy eating with working out. The nutritional approach of the Step Diet, cut food intake to 75 percent of what you currently eat. It also proposes walking 10,000 steps every day by employing easy techniques like parking the car farther than usual or taking the stairs instead of the elevator. Read the rest of this entry »

Why do we need water softener?

Feb 05
2010

glass of waterWhy do we need water softener? That is the question that bugs me every time I encounter the product. The water provider says that our tap water is safe. For that matter I truly exert a little effort to find the answer just to get rid of the question.

Thanks to the internet, it’s not difficult to find the answer I am looking for. So, here it goes.

Water softener provides better tasting soft water, free of dissolved magnesium or calcium. These compounds are good to us only at when taken at lower levels. Other than that it also benefits the washing machine as soft water clean clothing better since the mineral deposits are eliminated. Fabrics last longer and whites stay white without the dingy gray caused by hard water.

Also, bathing becomes more effective and the soap lathers better as a result hair and skin feels softer. Plus, there is no need to worry about scum builds up on shower heads, faucets, drains and more.

Well, those are just few of the obvious water softener benefits. For sure there are more if I dig more information. But, that would be another story.

Gates in a $10bn vaccines pledge

Jan 29
2010

Gates in a $10bn vaccines pledgeThe founder of Microsoft Bill Gates and his wife Melinda have said they will donate $10bn over the next 10 years to develop and deliver new vaccines. Mr Gates, speaking at the World Economic Forum in Davos, Switzerland, said the aim was to see 90% of children in developing countries immunized.

Over the past 10 years, the couple’s charity has committed $4.5bn to the development of vaccines. This commitment has been called by the WHO (World Health Organization) as “unprecedented”.

“The increasing immunization coverage in poorer countries to 90% it should be possible to save the lives of 7.6 million children under five between 2010 and 2019. We must make this the decade of vaccines. Vaccines already save and improve millions of lives in developing countries. Innovation will make it possible to save more children than ever before. Money was needed to make the most of new vaccines now becoming available, including ones against severe diarrhea and pneumonia,” Mr. Gates said in a statement.

Melinda Gates added: “Vaccines are a miracle. With just a few doses, they can prevent deadly diseases for a lifetime. We’ve made vaccines our number one priority at the Gates Foundation because we have seen firsthand their incredible impact on children’s lives.”

“This was really an unprecedented contribution and urged governments and private donors to add to the initiative. An additional two million deaths in children under 5 years could be prevented by 2015 through widespread use of new vaccines and a 10% increase in global vaccination coverage,”  Margaret Chan, head of the World Health Organization said.

important things to know about nap

Jan 22
2010

important things to know about napAre naps good for you or bad? I have learned both sides of the tale. I would like to nail down this controversy and show you how you are able to manage your sleep right so you can create an abundance of energy in your life, with lesser sleep. Yes, catnaps are really healthy, that is if you understand how your sleep system acts, and you know how to take a nap the right way.

Most of us do not understand that sleep is in reality quite a complex and fascinating internal system. While we are sleeping, we are not suddenly zombies away in an unidentified existence. Your internal sleep system is a mechanism which conforms to particular periods of time and phases to energize your body.

However, on that point there are another two critical things you must know about napping in order to take them extremely effective during your day, so that you are able of lowering your sleep, and supercharging your energy.

  • You must know precisely what the best time during the day is to take your nap.
  • You must know what to do afterward to quicken your body temperature rise.

I hope this will give you a bit insight in why you feel exhausted after taking your nap. So go ahead and improve your sleep habits.