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.

UK researchers have developed a 3D laboratory model of human breast cancer, specifically ductal carcinoma in situ (DCIS). The model, complete with normal cells and tumor cells, should help experts understand how the disease develops in its early stages, and it could replace the need for experiments in animals.

About one in five breast cancers in the UK start out as DCIS. Researchers wanted to learn more about how the early cancerous changes in cells develop into larger tumors, and they chose to fashion a 3D test tube model because it is more complex than a layer of cells in a Petri dish.

Once this experiment is proved successful, it could reduce and perhaps replace animal studies.

"With breast cancer, there is an urgent need to move away from animal research models because their similarity to human cancer can be so poor," says one expert who explains this model could help revolutionize breast cancer research -- because unreliable research costs time, money, and lives, both animal and human lives.

You've surely known kids whose parents smoke declare their repulsion for the habit. The health risk, the expense, the filth of smoking seem to deter many youngsters from following in the footsteps of mom and dad. Theoretically, anyway. In practice, these same kids may fall prey to the very act they vowed to reject.

How about kids raised in households filled with sugary snacks and drinks, foods packed with fat, salt, and calories, and parents with expanding waistlines? Seems only natural these children, despite good intentions, end up struggling with healthful eating and weight management.

We are what our parents teach us. It's all we know for a good many years. And by the time we are able to make our own independent decisions, it's often too late. Our parents' actions and values are already programmed within us -- and it takes hard work to switch things up.

So here's my plea for this Sunday morning: do your kids a favor and become a positive role model. Don 't just tell your little ones what is right and healthy and virtuous -- show them. Let your behavior be the gold standard now, so that later, it's likely to be what your sweet babies will fall back on.

Here are seven ways to get started:

Feed 'em well
If kids learn healthy eating habits early, they're likely to stick with them. Offer whole grains options (rice, bread, pasta) and snacks that are not in the junk food group. Don't even buy the stuff you may later wish to clear out of your cupboard. Guests at our house are offered two drink options -- water or milk. Why? Because if we have juice (it's loaded with sugar) or soda (also sugary and calorie-laden), our kids just can't hold back. But if we don't have these beverages, they are never an option. Out of sight, out of mind.

Keep 'em moving
Take your kids to the park, get them running around your backyard, take them swimming, organize a kid-friendly football game, invest in a kite. Quiet activities are also good -- and necessary -- but when in doubt about how to entertain your busy little bees, make them move!

Let 'em see you sweat
You need to keep moving too. Not only for your own well-being -- that's obvious -- but so your kids see your physical activity as a staple of healthy living. Teach your kids to do push-ups and sit-ups and do them together. Jump rope, run laps at a local track, ride bikes, or dance. Just don't expect your kids to stay active if your idea of exercise is flipping through TV channels.

No TV
Turn off that TV. Rid your household of junk-food commercials, mind-numbing content, and addictive inactivity. Let TV be a treat -- a small one -- and not an expectation.

No smoking
Need I explain? It's unhealthy, costly, dirty, and a sure contributor to cancer. Try with every ounce of your being to keep this habit away from your impressionable children.

No stress
Some stress is unavoidable. Some is even healthy. But the kind of stress that hurts our tummies, gives us headaches, and threatens our health should be minimized. We must do our best to control our own stress so its effects don't spill over. And we must teach our kids how to cope too. Fortunately, some of the techniques listed above also work for this category -- physical activity, for example, does wonders for lowering stress. We can become experts at deep breathing -- have your kids practice with you. And we can teach a bit of distraction. If homework is making kids crazy, go with them on a short walk where they can regroup and return to the task with a clear head.

No double standards
We simply cannot say one thing and do another. Smoking while preaching the dangers of the habit just doesn't make sense. Saying "no" to sweets with your hand in the cookie jar is downright unfair. Carrying around extra weight and demanding physical fitness is simply ineffective. So make a commitment to yourself and your kids that you will do as you say. It's the only way.

Farrah Fawcett turned 60 on Friday. And she's been celebrating this milestone along with a very important message she just received -- she is cancer-free.

Fawcett, former star of the hit 1970s TV drama Charlie's Angels, was diagnosed with anal cancer four months ago and has been enduring an aggressive treatment protocol to treat the disease -- a treatment that appears to have worked.

Her physician, Dr. Gary Gitnick at the University of California, Los Angeles, medical school reports Fawcett "has had a full and complete response to treatment." Recent tests show her cancer is gone -- and Gitnick calls her prognosis excellent.

Fawcett calls the whole experience a hopeful one.

"In the face of excruciating pain and uncertainty, I never lost hope," she said. "I hope that my news might offer some level of inspiration to others who unfortunately must continue to fight the disease."

By popular vote, Australia's beloved pop diva and breast cancer survivor has been chosen as the most inspirational celebrity of 2006. Sugar magazine teen readers indicated that Minogue represents their first choice as an inspirational role model for young women.

From the beginning of her breast cancer diagnosis, Minogue has shared her very personal battle with breast cancer in a very public way, raising awareness for the disease among a younger generation of women whose attention to breast health might not have been as focused otherwise.

Earlier this month, Minogue was named the Gold Choice Celebrity of the Year in the Sydney Confidential People's Choice Awards by Australia's Daily Telegraph readers.


For a retrospective of Kylie Minogue's breast cancer journey:

• Kylie Minogue: voted favorite traveling companion of men.
• Kylie Minogue: world exclusive interview with Sky One.
• Kylie Minogue loses close friend and personal chauffeur to cancer.
• Kylie Minogue: back on stage as a breast cancer survivor.
• Kylie Minogue: laughter is the best medicine for cancer cure.
• Dannii Minogue: sings under pressure about sister Kylie.
• Kylie Minogue breast cancer survivor glows in health.
• Kylie Minogue: cancer survivor writes children's book.
• Kylie Minogue joins women in fight for Herceptin.
• Kylie Minogue in breast cancer remission.

Cancer of the unknown primary is when cancer is found somewhere in the body but the pathologist is unable to tell where the cells originated from. The cancer cells are so poorly differentiated that they do not resemble any cells of the body. It can be very difficult to find the right treatment because doctors usually use the type of cancer as the main starting point to choose chemotherapy or treatments that are known to be effective. Other problems arise with this type of diagnoses. Many physicians do not have much to go on to treat this disease or know if the patient is likely to survive.

French researchers have developed a prognostic model for cancer of the unknown primary. The findings were published in the December 1st issue of Cancer. Low serum albumin levels and elevated serum lactate dehydrogenase (LDH) in the blood of patients had the worse prognosis overall. This prognostic model can show who has the most powerful adverse prognostic factors.

Even with this information though, it doesn't seem to have anything to do with treatment. They can tell who has a better or worse prognosis but what then?

Previous posts on the topic:

Cancer of the unknown primary

In space, zero gravity causes hair to increase in volume, get curly and float. A woman astronaut with long hair is encouraged to pull back their hair into a ponytail. Astronaut and Navy commander Suni Williams had a plan before she left Earth on the current space shuttle mission, to cut her hair and send the ponytail back to Earth on the Space Shuttle Discovery to be made into a wig for a cancer patient undergoing chemotherapy.

To state this woman is awe-inspiring is an understatement. In the ABC News Ponytail in Space report, when asked if she is a role model for young girls, Williams is quoted as saying, "I hope so. I wasn't always the sharpest tool in the shed, the smartest kid on the block, but I think there was a lot of persistence. And I hope kids understand it is OK to fail, if you learn something from failing. Maybe you don't get the first thing that you want, but if you are good at what you do, and you try hard, some things sort of fall into place. If you want something, you can obtain it."

I would say the courageous, determined and spirited Williams is a heroic role model for everyone, regardless of gender or age. According to the report, the smart, tall, willowy brunette with a wicked sense of humor, and zest for life was dancing to Bruce Springsteen's Born to Run before she climbed into her spacesuit for a grueling 7½-hour spacewalk on Saturday.

To view the online news video for this story, visit Space: The Haircutting Frontier.

During clinical studies, the Virtual Cancer Patient Engine (VCP) was found to be 70 percent accurate in predicting individualized patient response to chemotherapy drugs. The significance of the ability of this new technology to make accurate predictions in cancer treatments that will work before treatment begins is a 40 to 45 percent better accuracy rate than is currently predicted by oncologists. VCP analyzes how chemotherapy drugs will affect the growth of the cancer, how the chemotherapy drugs will behave in the body and how the cancer cells will respond to the chemotherapy drugs using mathematical modeling and computerized simulation between biological, pathological and pharmacological processes of drug-patient interactions.

According to researcher Dr. Abhik Mukherjee, "Every cancer is slightly different and every patient will respond to treatment differently. We wanted to find a way to predict how patients would respond to a particular drug in order to limit their side effects and give them the best chance of beating their disease."

Rather than throwing everything at the wall to see what sticks, as Katie Couric described current cancer treatments, this technology has the potential for creating individualized treatments specific to the patient and their cancer in determining what will work ahead of time without putting the patient through unnecessary treatments that will not work. To learn more, visit Optimata.

The power of positivity is subjective when it comes to cancer survival. There are those who argue that keeping up a positive attitude puts too much pressure on cancer patients. I think it depends on who you are at the time of cancer diagnosis, and what your individual personality style is in facing adversity, that is far more relevant to being a survivor.

Last Wednesday, when the news broke that Farrah Fawcett had been diagnosed with cancer, she asked that her privacy be respected. As is the case with most celebrities, it was not likely to happen. We have seen almost constant coverage in the details of her cancer diagnosis and treatment, and the paparazzi have captured in photographs her every movement.

Before the sun sets on this day, you are going to hear that Farrah Fawcett has been treated for colorectal cancer. Currently being reported in London newspapers -- here, here, and here -- the National Enquirer is running an exclusive story that Fawcett, famous poster sex symbol from the days of Charlie's Angels fame in the 70s, has already undergone radiation and surgery for a tumor found by doctors after her appearance at the Emmy Awards with Charlie's Angels co-stars Jaclyn Smith and Kate Jackson.

It might be true, and if so, we hope only the best for Farrah Fawcett. But we should hold out for something more substantial than the news being reported now, because we all remember the Whitney Houston brain tumor news, and Steven Tyler's throat cancer news. Which is why I am mentioning it here -- for a little cautionary perspective.

Update 4:30 (PST): Unfortunately, it appears this might be more than a rumor. Entertainment Tonight has published this report:

"ET confirms that Farrah Fawcett is battling cancer. Just minutes ago, the Charlie's Angels star released a statement to ET, saying, "Please respect my privacy at this challenging time."

The 59-year-old actress was last seen on the big screen in 2004 in The Cookout and has guest-starred on numerous TV shows in the past decade, including Ally McBeal, The Guardian, and Spin City."

Related post: Farrah Fawcett: Positivity is a necessity in cancer fight.

Each month, about 22,000 women log on to the National Cancer Institute (NCI) web site and answer seven questions to determine their risk of developing invasive breast cancer. The Gail Model, named for the NCI's chief biostatistician, Mitchell H. Gail, generates a five-year risk and a lifetime risk for each woman who answers each of these seven questions.

• Does the woman have a medical history of any breast cancer or of any ductal carcinoma in situ (DCIS) or lobular carcinoma in situ (LCIS)? Note: This assessment tool cannot accurately predict risk for a woman who already has a medical history of breast cancer.
  
• What is the woman's age? Note: This tool only calculates risk for women ages 35 and older.
  
• What was the woman's age at the time of her first menstrual period?
  
• What was the woman's age at the time of her first live birth of a child?
  
• How many of the woman's first-degree relatives -- mother, sisters, daughters -- have had breast cancer?
  
• Has the woman ever had a breast biopsy? How many breast biopsies has the woman had? Has the woman had at least one breast biopsy with atypical hyperplasia?
• What is the woman's race/ethnicity?

A simple drop-down answer menu is provided for each question, and explanations for each question are available. Upon completion of the short survey, the Gail Model spits out a five-year breast cancer risk and a lifetime breast cancer risk with comparisons to the general population of women.

While this is only an assessment -- based on statistics that do not always take into account individual differences -- it is still a helpful tool. Because it's clear that women can minimize breast cancer risk with behavior changes and sometimes medication. And generating a personal rating on risk is a rating worth knowing. It's also worth knowing that this tool was designed for use by health professionals. If you are not a health professional, consider discussing your results with your doctor.

When the First Lady of Surfing, Rell Sunn was diagnosed with breast cancer at the age of 32, she was told she had months to live. She lived each day as if it were her last -- with complete passion and compassion -- and lived another 15 years.

When I posted that each year during the Luau & Longboard Invitational event to raise money for the Moores UC San Diego Cancer Center, the Rell Sunn-Queen of Makaha Award in memory of Rell Sunn is given to honor the person or organization that best displays the qualities of compassion, unselfishness, aloha spirit and dedication in the fight against cancer -- I went in search to learn more about Rell Sunn.

Celebrity fashion photographer and co-founder of Dazed and Confused Magazine Rankin has launched a worldwide exhibit of his photographs conveying the special bond between women with breast cancer and the special family member or friend who comforted and accompanied them through the challenging days and nights from diagnosis to survivorship during the breast cancer journey.

Breast Friends is a photographic endeavor to capture the emotions of thirty international celebrities including Marcia Cross, Jerry Hall, Rosanna Arquette and Ronan Keating who have all been touched by breast cancer. Rankin began this campaign six months after he lost his mother Anne to lung cancer. He realized how important the bond between best friend and someone struggling to survive cancer can be when his mother died only weeks after she lost her husband, Rankin's father, to a heart attack.

Rankin is quoted as saying, "I thought my mother would have lasted another six months as she seemed so strong but the minute my dad died she deteriorated within a week." In July, supermodel Elle MacPherson helped Rankin with the initial launch of the Breast Friends campaign at the Oxo Tower Gallery in London. From there the exhibit will travel worldwide.

The Head to Hollywood charity, founded by US Weekly magazine editor Ken Baker, a pituitary brain tumor survivor, and actress/model Carmen Electra, whose mother died of a malignant brain tumor, provides brain tumor patients with opportunities to spend a day being pampered as a star and experiencing life as a celebrity. This might include attendance at Hollywood events and parties, VIP access to television and movie sets, personal meetings with stars, as well as celebrity spa and beauty treatments.

Recently, Ritz Camera Centers announced they have chosen Carmen Electra as spokesperson for several new products they will be introducing, and as part of the new promotion, the company is launching a fundraising campaign for Head to Hollywood. In the next few weeks, Ritz Camera Centers will be offering a limited edition poster for the Head to Hollywood charity and posting photos taken by Carmen Electra, who is reported to be a photographer in her own right, at their website.

Willie Hendry, international hairstylist to celebrities -- like actresses Liv Tyler and Keira Knightley, supermodel Kate Moss and pop singer Victoria Beckham -- will donate his collection of professionally-styled wigs to cancer patients at the Western General Hospital in Edinburgh, Scotland.

In addition to donating the wigs, he will be on hand to individually style the wigs for cancer patients. According to the news report, Hendry decided to donate all his wigs after meeting two cancer patients. Hendry's mother was diagnosed with breast cancer, so he is sensitive to how devastating chemotherapy-induced hair loss can be during the struggles to survive cancer.

"It isn't the fault of the health service, because a lot of their wigs are absolutely beautiful, but I know that there is a special wig bank that has been set up to help patients and I was very keen to donate all of the wigs I have to them. To get a real human hair wig, you have to pay around £200 and for some people that is an awful lot of money. This will allow them to have a top quality wig for practically nothing," explained Hendry.

This sounds like such a nice gift and gesture -- that he is not only donating wigs but that he will be there to professionally style the wigs for each woman.