These days, politics and cancer seem to go hand in hand. In February, United States Representative Charles Norwood, from Augusta, Georgia, died of lung cancer. In March, Virginia Congresswoman Jo Ann Davis revealed the breast cancer she fought in 2005 had recurred. A few days ago Elizabeth Edwards, wife of presidential candidate John Edwards, shared that her own breast cancer, originally diagnosed in 2004, has relocated to her bones.

United States Press secretary Tony Snow is a colon cancer survivor. Presidential candidate Rudy Giuliani is a prostate cancer survivor. Candidate John McCain has had three bouts with melanoma, the most aggressive form of skin cancer. Bob Dole, now 83, was a cancer survivor at age 73 when he ran for the White House as the 1996 Republican presidential nominee against President Clinton. And the 2004 Democratic nominee, John Kerry, had prostate cancer surgery in 2003.

If I did more research, I bet I'd turn up a whole slew of other politicians who have received a direct hit from cancer. But that's not necessary. I think what I'm trying to demonstrate is already clear.

Take any sector of society and cancer will somehow be woven into the lives of those who define the population. Athletes and cancer. Celebrities and cancer. Musicians and cancer. Kids and cancer. Young moms and cancer. Men and cancer. Politicians and cancer.

This brings me to my next point -- cancer is widespread, so widespread it surfaces over and over again within any given group of people. This makes me sad. But this infiltration of the disease also means none of us is alone. And as a woman with cancer; a young mom with cancer; a wife, a daughter, a sister with cancer; and a writer with cancer, this makes me feel comforted, supported, and utterly strong.

Presidential candidate John Edwards and his wife Elizabeth will appear tonight on 60 Minutes where they will publicly discuss with Katie Couric Elizabeth's newest cancer diagnosis and their decision to continue on in the presidential race.

Elizabeth, 57 and first diagnosed with breast cancer in November 2004, shared Thursday that her cancer has returned, this time in her bones. Considered stage four and treatable -- but not curable -- her cancer has generated much discussion and awareness about the workings of this life-threatening disease.

To view a clip from tonight's news program, airing at 7:00 PM ET/PT, click here.

Elizabeth Edwards, wife of Democratic presidential candidate John Edwards, has had many routine medical follow-ups since her 2004 breast cancer diagnosis. And all of them -- until just a few days ago -- resulted in what is generally termed a clean bill of health.

The term doesn't always come with a sense of relief for those of us surviving breast cancer -- or any cancer for that matter -- because it only really defines what our bodies are telling us at one specific moment. There are no magic blood tests, no special body scans, no conclusive ways of determining whether or not cancerous cells have gone astray and will one day surface again.

I asked my oncologist after my first six-month follow-up how he would know if my cancer returns. He told me it's really up to me to determine whether it comes back. It's up to me to get mammograms and ultrasounds and MRIs. It's up to me to report any symptoms and suspicions. It's up to me to track my general well-being so that it will be clear when something feels not-so-right. If I have a persistent cough or headaches that won't subside, my doctor will take action with X-rays and scans and tests. But as long as I feel fine and nothing troubling presents itself, then I remain in the clean-bill-of-health club.

Edwards no longer has a clean bill of health. But she is determined to use her newest diagnosis -- stage four metastatic cancer of the bones, considered treatable but not curable -- to work toward the best health she can acquire for as long as she can hold onto it. And that is about as good as any of us can do.

Increased intake of vitamin C from the diet, but not from supplements may slash the risk of mouth cancer by 48 percent, says an epidemiological study.

The study, published in the International Journal of Cancer, used data on supplement use and diet for 42,340 men in the Health Professional Follow-Up Study. During the course of the study, 207 oral pre-malignant lesions were documented.

Vitamin C from dietary sources was significantly associated with a reduced risk of mouth cancer, but no association with the vitamin from supplements was found.

Vitamin C is needed to form collagen, a tissue that helps to hold cells together. It's essential for healthy bones, teeth, gums, and blood vessels. It helps the body absorb iron and calcium, aids in wound healing and contributes to brain function.

You can find high levels of vitamin C in red berries, kiwi, red and green bell peppers, tomatoes, broccoli, spinach, and juices made from guava, grapefruit and orange.

A sarcoma is a cancer of the connective or supportive tissue and soft tissue affecting the bones, cartilage, fat, muscle, and blood vessels. Osteogenic sarcoma or osteosarcoma is one of the most common childhood bone cancers. Soft tissue sarcomas are more common in adults than in children. In all, sarcomas constitute fewer than 1 percent of all cancers. Its treatment is made more difficult with the existence of more than 70 varieties.

New studies released by the Journal of the National Cancer Institute showed that children who survive cancers have an increased risk of developing a secondary sarcoma,compared with the general population. Tara Henderson, M.D., of the University of Chicago Department of Pediatrics, and colleagues examined the incidence of secondary sarcomas and the risk factors associated with that risk among the 14,372 participants in the Childhood Cancer Survivor Study. Overall, there were 751 second cancers diagnosed among the participants, 108 of which were secondary sarcomas such as soft tissue sarcoma, malignant peripheral nerve sheath tumors, and osteosarcoma. These sarcomas were diagnosed an average of 11 years after patients were diagnosed with their primary cancer.

A friend of mine with breast cancer just sent out an update e-mail to friends and family. She began her message with an apology for her recent lack of communication. But she assured us all that she's been out of the loop not because she's felt sick or tired. It's because she's been too busy with normal life. And that's a good thing, she says.

This friend wasn't so sure how she would fare -- both physically and emotionally -- when she was first diagnosed with cancer. But she seems to have done a champion's job of rolling with the punches. Sure, she's had ups and downs. But she is overwhelmingly positive and hopeful. And jumping off my computer screen as I read her e-mail were at least seven bits of hope that tell me she is doing just fine despite all that is unbelievably hard about breast cancer.

My friend just had her first infusion of Taxol. A breeze, she calls it. One. So easy on her body -- two -- that she headed right out and took her daughter communion dress shopping. Her little love looked beautiful, she wrote. Like a mini-bride. The mother of the mini-bride then -- three -- turned a sad moment into a comforting one when her daughter asked, "Mommy, who do you think will bring me wedding dress shopping?"

Radioactive cancer patients attending this weekend's Super Bowl in Miami could be in for an alarming experience when they pass through radiation detectors designed to signal the presence of dirty bombs. Such cancer patients -- who have received treatment using radioisotopes and still may have tiny amounts of radioactive material in their bodies -- may want to come armed with letters from their doctors explaining their precarious set of circumstances.

The use of radioisotopes in medicine is growing -- and so is the use of radiation detectors in our security-conscious nation, which means patients are triggering alarms when they are not even aware they are being scanned, doctors and security officials say.

Nearly 60,000 people a day in the United States undergo treatment or tests that leave traces of radioactive material in their bodies, according to the Society of Nuclear Medicine. These traces are not enough to hurt anyone, but they are enough to trigger radiation alarms for up to three months.

Radioisotopes are commonly used to diagnose and treat certain cancers and thyroid disorders, to analyze heart function, and to scan bones and lungs. And many doctors already know to equip their patients with travel cards because of the problems they can encounter in public places.

Nearly 20 million nuclear medical procedures were performed in the United States in 2005 -- up 15 percent from 2001. Clearly, the number of people who could be mistaken for terrorists is quite large. So if you are one of these people -- with the power to create a buzz in a public setting -- get your papers in order so you can quickly confirm your identity as nothing more than a cancer patient.

Her diagnosis came at the same time as mine -- in November 2004, just after her husband, John Edwards, and John Kerry lost the presidential election. She received the same treatment as I did -- lumpectomy, chemotherapy, and radiation -- and so I was especially interested in her breast cancer journey as it paralleled my own in many ways. But just after her diagnosis surfaced in the media, Elizabeth Edwards disappeared from the radar -- perhaps like we all do in some way while immersed in the maze of cancer. So I lost track of her. But now -- almost two years later -- Edwards is back from cancer, back in the headlines, and back with a new book, Saving Grace.

Edwards, 57, reveals on the pages of her book the intricacies of her cancer ordeal. She shares that she experienced every side effect possible throughout her treatment. She bruised, bled, developed sores in her mouth, experienced numbness in her hands and feet, lost her hair, felt nauseated, ached in her bones and joints, and suffered yellowed and damaged nails -- and then chemotherapy stopped and she went on to the burning, blistering effects of radiation. Still, she managed to survive. And she thanks those who helped her survive -- for their tenderness, encouragement, humor, tears, and love -- and she writes all about it in her memoir that reveals how she juggled life and marriage and kids and cancer and how she arrived in a new place. A happy place.

I have a cabinet full of supplements I've never taken. I've never been convinced they will do much for me -- other than add an easy-to-forget routine to my day -- and doctors have typically advised me that a healthy diet will deliver just about everything I need for optimal functioning. I still wonder sometimes if I get enough calcium and at times I have taken iron supplements when doctors have determined I lacked appropriate iron levels. But I have never wondered about all the other pills and powders and liquids that claim to promote health -- and sometimes prevent cancer. And after reading a recap of a study in the September 2006 Oprah magazine, I am further convinced that supplements are just not for me.

A report from ConsumerLab.com (CL), a company that tests and certifies supplements, suggests that some people might be ingesting too much lead as they try to keep cancer at bay. CL randomly selected various green tea preparations from store shelves, websites, and direct marketers and found that two out of four contained what is considered unacceptable levels of lead. Green tea products they recommend avoiding are Futurebiotics Premium Extract Standardized Green Tea tablets and Herbal Select Standardized Green Tea Extract. Products found to be totally free of lead are Life Extension Mega Green Tea Extract, Nature's Bounty Green Tea Extract, Pharmanex Tegreen 97, and Puritan's Pride Green Tea Extract.

Experts believe that some supplements may help prevent cancer. But most testing is done on food so we can't be entirely sure about the safety of supplements. Their advice is this -- make a change through a healthy diet rather than supplements. This is just what I plan to do.

Due to the recent death of Ryder Cup golfer Darren Clarke's young wife Heather to breast cancer, golfer Padraig Harrington is donating all the prize money he earns from playing in the PGA Championship to breast cancer research. To honor the memory of Heather Clarke, if he takes the trophy, he plans to donate the $1.2-million dollar purse to the breast cancer charity of Darren Clarke's choice.

"Darren has his choice of charity, and I'll donate whatever I win this week." Harrington said. "This is at least a practical way of helping." Many of the golfers in the tournament are wearing black arm bands to show respect.

Late Saturday night, Heather Clarke, only 39 years of age, mother of two small boys, passed away in London's Royal Marsden Hospital after her struggle to survive breast cancer that had spread to her bones and liver.

"I think both Darren and Heather were exceptionally brave and so dignified about what they've gone through," stated Harrington. "It's been terribly hard."

On Thursday, the funeral for Heather Clarke will take place in Portrush and she will be laid to rest at Ballywillan Church. Just ten years ago, Heather and Darren were married at Ballywillan Church.

Lord of the Rings Oscar award-winning filmmakers Peter Jackson and Fran Walsh have donated over $300,000 dollars to the University of California for human embryonic stem cell research.

Jackson is quoted as saying, "We have lost close friends and relatives to cancer and Parkinson's disease, and the level of personal suffering inflicted on patients and their families by these diseases is horrific."

The Bill and Joan Jackson Scholars Fund, in honor of Jackson's parents, will be established through the university to award two scholarships to students specializing in stem cell research. Because the US government restricts research funding for the use of stem cells from human embryos -- which some religious groups have objected to as morally equivalent to abortion -- and others support as the path to cures for many diseases including cancer -- human embryonic stem cell research in this country requires private funding.

"Stem cell therapy has the potential to treat a multitude of diseases and illnesses, which up until now have been labelled incurable. It has the capacity to exponentially improve the quality of life for those who currently suffer from spinal cord injury, diabetes, Parkinson's disease, and many other debilitating medical conditions, " stated Jackson.

Stopped by Darren Clarke's blog today and read that he has donated the $1,840 dollar prize from his Shot of the Month award to cancer charity and will begin an online auction for the trophy that he received with it to raise additional money for cancer charity.

Clarke posted, "It really is a worthwhile cause and a superb trophy so here is a chance for a generous benefactor to help us fight this terrible disease by winning our auction."

Clarke's wife, Heather, has been battling breast cancer that has spread to her bones and liver. They have two sons, and while Clarke is a competitive athlete, his first priorities and heart are with his wife, as she struggles with ongoing cancer treatments.

When Tiger Woods was worried during his late father's struggle with prostate cancer, Clarke was one of the people Woods spent time with, as both understood how the other felt.

If you are interested in bidding on the trophy, Clarke said he will be posting information about it shortly.

08.13.2006 UPDATE: Darren Clarke has lost wife after long struggle with breast cancer.

7.21.2006 UPDATE: Darren Clarke: golf loses pro golfer due to cancer struggle.

A new study reveals that women who received childhood cancer treatment may enter menopause much earlier than women who are not childhood cancer survivors. Siblings were studied -- 2,800 women who did receive treatment and 1,000 sisters of cancer survivors who did not. Women who underwent ovary-removing surgery were excluded from the study -- and the study then found that eight percent of cancer survivors experienced early menopause and less than one percent of the sisters experienced the same phenomenon. The risk was highest -- 30 percent -- for those who once received radiation to the lower abdomen and who also received certain chemotherapy agents, such as cyclophosphamide. Researchers say that 30 percent may be an underestimate, however, because the study included mostly women who had not yet reached age 40. The number of childhood cancer survivors over age 40 entering early menopause is still unclear. What is clear are the unfortunate consequences of this finding that could affect family planning, middle age health, thinning bones, other problems associated with menopause.

While attending his caddie Steve Williams wedding in New Zealand, Tiger Woods announced he is taking time off to be with his father and will not be playing in any golf tournaments until the U.S. Open in June. "It's kind of up in the air with the situation back home, so I don't know what's going to happen," said Woods. "I'm taking time off. I'm here for this event and for Steve, and to enjoy time off and be with my father, so I won't play for a while." Woods has been very clear in his priorities when it comes to his father, Earl Woods, who is battling prostate cancer. Back in March, Woods remarked, "It puts things in perspective. You hit a bad shot, and you want to get upset with yourself because you know you can hit better shots, but in the whole scheme of things, it's just a golf shot."

It is also reported that Darren Clarke withdrew from the Shell Houston Open after his first round to return home to be with Heather, his wife, who has been battling breast cancer for the last four years. Sadly, the cancer has spread to her bones and liver. They have two sons. He did not make any public comment. The PGA issued a statement on his behalf, letting everyone know he had left the tournament. In 2005, Clarke took much of the season off to be with his wife as she underwent chemotherapy.

According to the American Cancer Society, three out of four families will be touched by cancer -- but each time you hear news that another family is facing the tough circumstances of cancer never lessens the heartbreak felt for each one of them.

August 13, 2006 Update: Darren Clarke has lost wife after long struggle with breast cancer.
May 03. 2006 Update: Tiger Woods loses father to cancer.