Don Herbert, also known as television's science teacher Mr.Wizard, died at his home Tuesday of bone cancer. He was 89.

Mr. Wizard's target audience was kids (baby boomers: you may already know this) and his lessons taught youngsters to use the thinking skills of scientists through workshop experiments using simple household items. His 1950s series Watch Mr. Wizard was so good it won a Peabody Award in 1954, and Herbert was one of David Letterman' first guests when the show Late Night With David Letterman debuted in 1982. Herbert's show made it to Nickelodeon too and ran from 1983 to 1991. Reruns were shown until 2000. Nickelodeon's Mr. Wizard episodes are available here.

A native of Waconia, Minnesota, Herbert graduated from LaCrosse State Teachers College in 1940; served as a U.S. Army Air Corps pilot during World War II; and worked as an actor, model, and radio writer before reaching fame on Mr. Wizard in Chicago -- and then New York -- on NBC.

He is survived by six children and stepchildren and by his second wife, Norma.

Magnetic resonance imaging (MRI) showed in a study presented at the 2007 annual meeting of the American Society of Clinical Oncology to be better at detecting ductal carcinoma in situ (DCIS) than mammograms. MRI's were also shown to be very good at detecting high grade DCIS.

Women are recommended by the American Cancer Society to get an annual mammogram after the age of 40, do clinical breast exams starting in your 20's and if you are in a high risk group to receive annual screening with a breast MRI.

In a study among almost 6,000 women who were screened with both MRI and mammography, MRI detected 92 percent of DCIS cases where mammography only detected 56 percent of cases diagnosed.

John Ondrasik, the man and musician behind the band Five for Fighting, has released a new album and a new website that just happens to benefit the Breast Cancer 3-Day, a 3-day, 60-mile walk sponsored by Susan G. Komen For the Cure.

Think about this:

Ondrasik's new album, "Two Lights," features a song called "World" which is in heavy rotation on pop radio stations across the country. This single is the inspiration for Ondrasik's new website, What Kind of World Do You Want -- the first video community that gives back by allowing visitors a chance to make a difference.

This is how it works: reveal what kind of world you want and help raise money for charity by watching videos or creating and uploading a video of yourself, your friends, or your family. In your video, answer the question What Kind of World Do You Want? and then choose which charity you wish to help fund.

In addition to the Breast Cancer 3-Day, selected charities include the Fisher House, Save the Children, Autism Speaks, VH1 Save the Music Foundation, and NY Police and Fire Widows & Children. Video clips describing each charity, a message from Ondrasik, and a video of the song "World," are all featured on the site.

White House Press Secretary Tony Snow popped in for an unexpected visit on Bill O'Reilly's Radio Factor on Wednesday with the purpose of clearing up a certain cancer matter.

"Some of this has been misreported," Snow told O'Reilly in reference to his recent cancer recurrence.

"I do not have liver cancer," Snow said. "There are a number of small tumors that are in my abdominal cavity; they have not hit any other organs."

Snow, 51, said there is also no cancer traveling through his bloodstream and that he plans to return to work after recovering from the surgery he had two weeks ago to remove tumors from his abdomen.

Although his cancer is not threatening his life -- he says if the tumors didn't grow from now until the time he died, he would be absolutely fine -- Snow will still receive chemotherapy to "drive this sucker into remission," he said.

Snow began battling cancer in 2005 when he was diagnosed with colon cancer, had his colon removed, and underwent several months of chemotherapy.

White House press secretary and colon cancer survivor Tony Snow asks the public to refrain from jumping to conclusions regarding the surgery he will have on Monday to remove a growth from his lower abdomen.

Blood tests and a CAT scan of the growth show no presence of cancer, he reports. But still, he and doctors are proceeding cautiously due to his history.

Snow, a former Fox News radio and television talk show host, was diagnosed with cancer two years ago, when he was a commentator at Fox. Two months after surgery, he returned to the air and then became White House press secretary in April 2006.

Snow's plan is to be back behind the podium a few weeks after surgery, when he has a better idea of what it is he's dealing with.

As Leroy Sievers says, "Most of you know me as someone with cancer. Google my name -- and yes, I confess, I've done that -- more often than not, it comes up linked to one other word: cancer. But what about all the other things I've been?"

Sievers has been a journalist for most of his adult life. He's also been a baker, a short-order cook, a teacher, and an aspiring author. Yet cancer is the word most often used to describe this man.

But maybe not for long.

Could it be that Sievers -- a man whose life has been derailed by a deadly cancer traveling throughout his body, a man who has been contemplating death with each passing day -- may soon be rid of cancer altogether?

Actually, Sievers already sees glimpses of cancer falling to the wayside.

Having undergone a new procedure called Radio Frequency Ablation -- where needles are stuck into tumors, burning them away from the inside out -- Sievers sees a brighter future. He's seen his latest scans. He's seen the black holes where tumors once lived. He's seen that no new tumors have appeared. He's seen that he may actually survive cancer.

Months ago, this man, who blogs his cancer journey for NPR, was told he would likely not survive the year. Now he realized he may outlive this prediction. And while this is great news, Sievers finds himself a bit unsure about a life without cancer.

"Will I be somebody who used to have cancer?" he says. "I think most cancer patients don't ever think it's really gone. It's just hiding, waiting to jump out and scare us when we least expect it. Will I be able to resume my old life? To rebuild my battered body into what it was before? I don't know. But I know this disease has changed me dramatically in so many ways. I am a different person. Hopefully a better person. You cannot go through an ordeal like this and not be profoundly affected."

Now that's what a call a fresh perspective.

To read previously-written posts about Leroy Sievers, click here.

Someone asked me the other day how I continue to come up with topics for my posts. I wish I could say it was a chore to find material on cancer, but it isn't. There is always something to write about -- so much to write about, in fact, that if I had the time and energy, I could write volumes each day.

I find my topics in newspapers, in magazines, and in books. I spot them on television, on the radio, on the internet. I draw from personal experience and from others' experiences. I write and write and write because cancer just keeps on appearing in my life. I wish it didn't.

Cancer is everywhere. And it offers me an endless reserve of material that just keeps stacking up. So how do I come up with topics for my posts? I don't. The topics come to me.

On December 8, 2006, I wrote about a Danish study investigating the possible link between cell phone use and cancer. This largest-ever study of it's kind put fears to rest. Cell phones do not cause cancer, said researchers who announced that cell phone users -- even long-term users -- are at no more risk of developing cancer than their non-cell phone using counterparts.

There's just no biological basis for concern about radio waves, reported the lead investigator of this study. But another newer study reports something entirely different.

Long-term mobile phone users are more likely to develop cancer -- brain cancer, on the side of the head where the phone is held -- according to the Radiation and Nuclear Safety Authority in Finland. It will all be detailed later this year in the International Journal of Cancer, but the general gist of the study is already circulating.

The study -- the second one to suggest an increased risk of cancer due to emissions from cell phones -- found that people who regularly used cell phones for more than 10 years were 40 percent more likely to develop nervous system tumors called gliomas. Comparisons were made between 1,521 people with gliomas and 3,301 people without the tumors. While no connections were initially made between the phones and cancer, a link was found when researchers specifically focused on those who had used their phones for more than 10 years.

Short-term use of cell phones has never been linked to cancer. That's good. But I tend to believe cell phones are going to become even more a staple of our technologically-driven lives than they are now. And so 10 years may actually be considered short-term one day -- which means we all may soon be at risk.

For now, until research becomes more conclusive, we get to pick and choose which study to stand behind. So take your pick -- and stay tuned for future scientific revelations.

Former NASCAR champion Benny Parsons, hospitalized on December 26 due to complications from lung cancer, died today in Charlotte, North Carolina after a short battle with the disease. He was 65.

Parsons, who had not smoked since 1978, was diagnosed with cancer in his left lung in July 2006. He underwent aggressive chemotherapy and radiation and announced in October that he was in remission. But the intensive treatment rendered his left lung useless and then a blood clot appeared in his right lung, prompting his admission to the hospital where he spent his remaining days in an induced coma.

Parsons was confident he could survive with one lung and compared his condition to that of John Wayne.

"John Wayne lived and had a great career with one lung," he said. "There is no reason why I can't do the same. It will take a little while for the right lung to pull the weight for the left lung so until then I will still need to use oxygen when I walk. I won't need it sitting or commentating races and to me that is the main thing. If given a choice between cancer or losing a lung I would say that I got the right end of the deal."

Parson's intense spirit was his trademark. It motivated him to rise from a poor childhood, leave behind a taxi driving job, and head straight to the top of NASCAR. His success is marked by his 1994 induction into the International Motorsports Hall of Fame and his 1995 induction into the National Motorsports Press Association's Stock Car Racing Hall of Fame.

One of NASCAR's 50 greatest drivers and the 1973 champion, Parsons retired from racing in 1988 and headed straight into a broadcasting career. He spent the past six years as a commentator for NBC and TNT and even continued to call races from the booth during his treatment. He hosted a weekly radio program and kept fans updated on his condition on his very own blog.

Judging by the comments left for Parsons on a January 8th post about his hospitalization, there was an abundance of love for this man, nicknamed BP by the NASCAR community.

"He was a great driver and a terrific broadcaster, but above anything else he was a kind and generous human being," said Dick Ebersol, chairman of NBC Sports. "His character and spirit will define how he is remembered by all of us. Benny will be sorely missed."

Parson's death comes eight days after the death of NASCAR driver and Truck Series Champion Bobby Hamilton.

NASCAR is in the news -- because of the cancer battles of two of its favorites.

On Sunday, longtime NASCAR driver Bobby Hamilton died after a battle with head and neck cancer. His cancer was diagnosed in February 2006. He was 49.

It has also been reported that former NASCAR champion Benny Parsons has been in intensive care for two weeks at Carolinas Medical Center due to complications arising from lung cancer.

Parsons, 65 and a non-smoker since 1978, was diagnosed with cancer in his left lung in July 2006. Following treatment, he announced in October he had beaten the disease. But he was unable to attend a November ceremony in New York to accept the Myers Brothers Award for contributions to his sport. And on December 26, he entered the hospital.

"Parsons' family has been overwhelmed by the outpouring of support from fans and the NASCAR community, and they encourage everyone to keep Benny in their thoughts and prayers," according to a statement issued on Parsons' behalf.

Parsons, a NASCAR television commentator with a weekly show on the radio network, was selected one of NASCAR's 50 greatest drivers in 1998 -- 10 years after his retirement -- in honor of his 21 wins in 526 starts.

The ABC building in the Brisbane suburb of Toowong -- subject of a December 2006 post -- has been officially vacated following an investigation that turned up a cancer cluster among female employees.

Over the past 11 years, 10 women from this one building have been diagnosed with breast cancer. Eight of the women worked in the ABC newsroom, and most had been there for more than five years. The breast cancer risk for these women was six times higher than for the general population of women in the area. And while the investigation continues and clues are beginning to connect, the big question -- Why? -- has still not been answered.

It has been determined it is highly unlikely the increase in breast cancer was caused by exposure to radio frequency, low frequency electromagnetic radiation, or chemical contamination. According to experts, had any of these factors been at play, there would have been a rise in cancer among male employees as well as female employees. Therefore, it appears something specific to women has caused this cluster.

Perhaps clues will emerge from an analysis of lifestyle influences -- like smoking, diet, and alcohol and medication use -- and already women have answered questions pertaining to body weight, height, level of physical activity, and reproductive history.

One common theme among women is the use of oral contraceptives for periods varying from two to 18 years. Other interesting findings include the average number of babies born to the women -- 1.6 -- and the breastfeeding practices of the women -- each woman with a child breastfed for an average of 2.3 to 12 months -- and the educational background of the group -- of the 10 women, six have college degrees.

Experts says these are important factors. Early puberty, late menopause, lack of breastfeeding, use of oral contraceptives, and the trend of older mothers having fewer babies all can influence breast cancer risk. And so can level of education. Research shows increased rates of breast cancer in women with white collar jobs -- which is related to socioeconomic status and late childbearing.

Everything is important really -- because as breast cancer rates continue to skyrocket, all possible reasons need to be considered.

One in eight women in Australia will be diagnosed with breast cancer before the age of 85. About 13,261 women were diagnosed with breast cancer in 2006. And it is predicted that 14,818 will be diagnosed in 2011.

Leroy Sievers has many titles. He's a journalist and a commentator and even a blogger. He's a cancer patient too. And while he accepts cancer patient as one of his working titles, he never would have said this title dominates all others in his life. He is, after all, more than cancer.

On his December 4 NPR podcast and My Cancer blog entry, Sievers reports about a host on a radio call-in show who recently asked him if cancer overshadows everything else in his life.

"No," he answered, recalling the first time he had cancer. He was treated with surgery and moved on. Cancer didn't overshadow anything. But that cancer was different than the cancer now invading his lungs, spine, and brain. And after a bit of thought, Sievers thinks he may have been too quick with his radio response.

This cancer is not a drive-by-disease, he says. It's grabbed him -- and is holding on. It has changed his entire life. He can no longer do everything he once did. And not a day goes by without a reminder of cancer. The treatment, the nausea, the tingling in his hands. Cancer is with him all the time, lurking in the shadows.

Whether he gets the pleasure of remission or the disappointment of a set-back, Sievers realizes he will always be a cancer patient. He realizes that cancer does in fact overshadow everything else in his life.

Previous posts about the cancer journey of Leroy Sievers are as follows:

Journalist Leroy Sievers adjusts to newfound hope
War journalist now witnessing his own cancer death
NPR Leroy Sievers blogs My Cancer

Cell phones don't cause cancer, according to a major study from Denmark that tracked 420,000 Danish cell phone users -- many of them users for more than 10 years and some for more than 20 years.

In the largest ever study to yield good news about the safety of cell phones, scientists matched phone records to the Danish Cancer Registry -- a listing that records every citizen who gets the disease -- and on Tuesday, the study results were revealed.

Cell-phone users are no more likely than anyone else to develop cancer.

But the lead researcher of this massive investigation says doubts will surely linger. There is really no biological basis for concern about radio waves, he says. But people still worry.

Cell phones beam radiofrequency energy that can penetrate the outer edge of the brain, causing suspicion about the origin of various cancers. Most research has found no link between cell phones and cancer, but the phones have never been given a definite clean bill of health either.

"As the body of evidence accumulates, people can become reassured that these devices are safe," says one cell phone researcher.

Sabrina Weill, CEO of Weill Media and former editor-in-cheif of Seventeen, accomplished a big thing on Monday. She launched her own website. And she hopes it will inspire others to do big things.

Weill is partnering with newspapers, television shows, magazines, radio shows, and websites and is asking professionals at these media spots to add a Halo Link to stories they feature about individuals in the midst of personal crisis who represent larger social issues such as autism, child neglect, poverty, cancer, crime, and natural disasters -- and who need financial assistance as they journey through difficulty.

The Halo Link will deliver readers directly to Weill's website where they can make a difference in the lives of those who need a little boost.

Weill's motivation comes from a news story she heard about a mother who saved enough money from recycled cans to send her four children to college. Weill wanted to send this woman a check but didn't know how to locate her. The next day, a friend shared she wanted to do the same thing but was stuck. Weill and her friend wanted to help. They just didn't know how to reach out.

Weill wanted to make it easier for others to locate potential recipients of their good will. And so ProjectAngelMom.com was born.

"In the wake of recent tragedies, and with the holidays upon us, I keep hearing people say they are looking for more personal ways to make a difference," says Weill. "Even if someone only has $5.00 to give, it adds up and can make a huge impact."

Beginning today, these words will be broadcast on various local Gainesville radio stations. These words are about breast cancer, about raising money for this serious disease, about Making Strides Against Breast Cancer, about the American Cancer Society. These words are about me. These are my words.

I'm Jacki. I'm someone you know. I'm a mother of two young sons, a wife, a sister, an aunt, a daughter, a friend. I am a freelance writer and a preschool teacher. I like to exercise and scrapbook and watch my little boys enjoy life's simple pleasures. I like pedicures, massages and candles. I'm 36 years old. I'm someone you know -- but I'm not alone.

I was diagnosed with breast cancer almost two years ago. And the American Cancer Society was instrumental in my recovery. I was comforted by their cancer programs and events, soothed by volunteers who called me at home to lend an ear, and educated by American Cancer Society literature and resources.

Join me for our Making Strides Against Breast Cancer walk on Saturday, October 14th, at the North East Park in Gainesville at 7:30 a.m. to help fund breast cancer research. Visit www.cancer.org or call 1-800-ACS-2345 to learn how you can become involved. Because someone you know has breast cancer. I'm someone you know -- I'm a breast cancer survivor -- and with the American Cancer Society, I'm not alone.