DNA damage

  1. Watercress benefits – may protect against breast cancer

    If you‘re a breast cancer survivor, make sure you take advantage of as many watercress benefits as often as you can. It may just protect you against the cancer ever making a comeback. In fact, according to a new study, this tart leafy green starves out breast cancer cells and interferes with a major cancer pathway.

    Leafy green superfood protects DNA

    Watercress is a delicate leafy green that grows in spring water. It looks a lot like lettuce, but it actually belongs to the cabbage family. It‘s plentiful in iron, calcium, vitamin A and C and for thousands of years people have eaten it to stay healthy.

    In fact, ancient Persians, Greeks, and Romans enjoyed watercress with their meals. I‘ve even read that Hippocrates -- the father of medicine -- built his first hospital next to a spring so that he‘d have easy access to all the watercress benefits.

    A few years back, scientists found that watercress has a lot of anti-cancer potential. In fact, in one study, men and women who ate a serving of watercress each day for eight weeks increased antioxidant levels in their blood. This is important because antioxidants remove cancer-causing free radicals from the body.

    Plus, these folks decreased the DNA damage to their white blood cells by almost 25 percent. And why is that significant? Well, according to Professor Ian Rowland, the study‘s lead researcher, "Blood cell DNA damage is an indicator of whole body cancer risk." So, the more DNA damage there is to your white blood cells, the higher your cancer risk. But the watercress benefits seem to lower your overall risk.

    And, apparently, this is especially beneficial for women...

    Watercress benefits -- "shuts down" breast cancer delivery system

    The latest study looked specifically at how breast cancer cells respond to watercress.

    As you probably know, breast cancer tumors (like most malignant tumors) survive on nutrients delivered by your blood vessels. And as the tumor grows bigger, it needs access to more and more blood vessels.

    To solve this dilemma, the tumor sends a signal for your body to release a protein called HIF. This protein tells normal tissue to redirect their blood vessels into the hungry tumor. As a result, the tumor grows and spreads with nutrients delivered by the "stolen" blood vessels.

    But there‘s a plant compound proven to block the release of HIF and put a stop to all the frantic blood vessel growth...and that plant compound is found in abundance in watercress!

    Breast cancer survivors load up on watercress

    For the study, UK scientists recruited a small group of breast cancer survivors. The women agreed to eat 80 grams of watercress (a cereal bowl full) and then give blood samples over a period of 24 hours.

    The research team discovered two things by analyzing the participants‘ blood samples. First, remember that helpful plant compound that blocks new blood vessel group? Well, after eating watercress, the women had lots of that compound in their blood.

    And that‘s not all...

    Remember that harmful protein -- called HIF -- that signals the body to send healthy blood vessels into malignant tumors? Well, the scientists found that HIF levels significantly dropped after the women ate the watercress. This means that any tumors trying to regain toe-hold in the body had another thing comin‘ after the women ate watercress.

    So, without a doubt, if you‘re a breast cancer survivor, make watercress a part of your weekly (if not daily) regimen. I hear that in Britain that‘s their favorite type of green vegetable.

    Look for it in the refrigerated aisle of the produce section, near the lettuce. It‘s got a small, delicate leaf that almost looks like a flower. Put it on sandwiches. Use it in salads. Or add it to soups, quiches, omelets, sauces and dips to experience all the watercress benefits. You can find tons of recipes on www.watercress.com.

  2. More benefits of green tea – it protects your DNA

    One of the many newly discovered benefits of green tea is  that is protects your DNA. That‘s now a proven scientific fact, thanks to the work of Professor Iris Benzie. And her powerful new discovery helps explain why green tea drinkers seem to avoid weight gain, depression, cancer, heart disease, and Alzheimer‘s disease.

    Three reasons to drink green tea

    We already knew that there are many benefits of green tea. First, it purifies the body by eliminating free radicals. Free radicals are those unstable molecules that cause disease and age your body.

    Secondly, drinking green tea promotes the healthy turnover of cells in your body. Technically, it‘s called "apoptosis." And it prompts old cells to die off so that new, healthy cells can take their place. Apoptosis also prevents cancer by blocking the uncontrolled growth and spread of damaged cells.

    And lastly, we now know that green tea also protects your DNA, the tiny building blocks found inside nearly every cell in your body. Many scientists compare DNA to an elaborate set of blueprints or instructions. Think of your DNA as "ground zero" for good health. It all starts in the tiniest building blocks of your cells.

    So what damages your DNA?

    Radiation, UV rays, toxins, chemicals, free radicals, and unhealthy diet can all -- over time -- damage your DNA. Fortunately, your body finds and repairs most damage on its own. In fact, special proteins -- I like to think of them as DNA "watch dogs" -- tirelessly scour your body looking for problems.

    When they find a damaged strand, they immediately tell the cell to stop dividing, so the problem won‘t pass on to the next generation of cells. And then your body goes to work repairing the DNA. This ensures that you will go on to live a long, healthy life.

    But sometimes the DNA cops miss a strand. And these damaged strands can cause problems down the road, such as premature aging and disease. The good news is green tea can help prevent problems from even occurring in your DNA in the first place.

    Green tea protects your DNA

    Iris Benzie and her team of researchers recruited 18 healthy volunteers to participate in a study examining the effects of green tea on DNA. They divided the volunteers into two groups. One group drank two cups of one percent green tea (longjing green tea or screw-shaped green tea) every day for four weeks. The other group drank water every day for four weeks.

    Researchers took samples of the participants‘ blood and urine before and after the month-long study. Their analysis showed that the group who drank green tea reduced their DNA damage by 20 percent. And that was after just 30 days of drinking green tea! Imagine how good your DNA would look if took advantage of the benefits of green tea for one whole year of five years or 20 years.

    Plus...

    Why stop at one cup, when three is better?

    Research from earlier this year shows that drinking three cups of green tea every day may significantly increase your lifespan.

    This time, scientists compared the length of telomeres among green tea drinkers. (Telomeres are DNA sequences at the end of your chromosomes. They shorten as your cells replicate and age. So the longer your telomeres are, the "younger" your cells.)

    Scientist found that men and women who drank an average of three cups of green tea per day had a big advantage over one-cuppers. In fact, their telomeres were 4.6 kilobases longer, which translates into about five years of life.

    So go ahead and have that second (or third) cup of green tea today. The benefits of green tea may just add five years to your life! Just make sure to drink the real stuff, made by you with tea bags. Don‘t fall for the sweetened kind found in bottles. These only contain a fraction of the antioxidants found in real green tea. Instead, it‘s mostly sugar and water.

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