Thursday, August 23, 2007

Drink water for good health
Ways to increase and maintain the quantity of the drinking water.
Keep a Log This can be as simple as a little piece of paper on the fridge, or a page in your day planner. Just make a little checkmark, or dash on the piece of paper every time you drink a glass of water. The log will help you keep track of how much water you have had in any given day. You'll also be surprised at how motivating it is to try to get those eight little checkmarks on there every day. Another idea would be to use little stickers instead. Add Some lemon juice One tends to get bored with drinking just water after a few days. Change things up and add a little flavour by adding a teaspoon or less of lemon to your water. You can also try some other fruit juices. Carry a water bottle It's much easier to drink water when you have it readily available. Carry a bottle of water around with you in the car, at work, while running errands, in the yard, and even while you are working around the house. You'll be sipping away the water without even noticing it. Your body will thank you for it in the long run.

Tuesday, August 21, 2007

Artificial life likely in 3 to 10 years

Around the world, a handful of scientists are trying to create life from scratch and they’re getting closer. Experts expect an announcement within three to 10 years from someone in the now little-known field of "wet artificial life". "It's going to be a big deal and everybody's going to know about it," said Mark Bedau, chief operating officer of ProtoLife of Venice, Italy, one of those in the race. "We're talking about a technology that could change our world in pretty fundamental ways — in fact, in ways that are impossible to predict," Mark added. That first cell of synthetic life — made from the basic chemicals in DNA — may not seem like much to non-scientists. For one thing, you'll have to look in a microscope to see it. "Creating protocells has the potential to shed new light on our place in the universe," Bedau said, adding, "This will remove one of the few fundamental mysteries about creation in the universe and our role." And several scientists believe man-made life forms will one day offer the potential for solving a variety of problems, from fighting diseases to locking up greenhouse gases to eating toxic waste. Bedau figures there are three major hurdles to creating synthetic life: A container, or membrane, for the cell to keep bad molecules out, allow good ones, and the ability to multiply; A genetic system that controls the functions of the cell, enabling it to reproduce and mutate in response to environmental changes; A metabolism that extracts raw materials from the environment as food and then changes it into energy. One of the leaders in the field, Jack Szostak at Harvard Medical School, predicts that within the next six months, scientists will report evidence that the first step — creating a cell membrane — is "not a big problem." Scientists are using fatty acids in that effort. Szostak is also optimistic about the next step — getting nucleotides, the building blocks of DNA, to form a working genetic system. His idea is that once the container is made, if scientists add nucleotides in the right proportions, then Darwinian evolution could simply take over. “We aren’t smart enough to design things, we just let evolution do the hard work and then we figure out what happened,” Szostak said. In Gainesville, Florida, Steve Benner, a biological chemist at the Foundation for Applied Molecular Evolution is attacking that problem by going outside of natural genetics. Normal DNA consists of four bases — adenine, cytosine, guanine and thymine (known as A,C,G,T) — molecules that spell out the genetic code in pairs. Benner is trying to add eight new bases to the genetic alphabet. Bedau said there are legitimate worries about creating life that could "run amok," but there are ways of addressing it, and it will be a very long time before that is a problem. "When these things are created, they’re going to be so weak, it'll be a huge achievement if you can keep them alive for an hour in the lab," he said. "But them getting out and taking over, never in our imagination could this happen," he added.
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