I'm never quite sure what to do about vitamin supplements. Should I take them? Or should I leave them?

Sometimes I think supplements could surely help me with whatever I'm lacking in my diet. Other times I don't want to mess with what might be working just fine in my body. Now if a doctor tells me my iron is low, I'll take a supplement to boost my levels. But if there is nothing apparently off kilter in my system, I tend to just leave things alone.

I'm glad at the moment for my current plan. Because nutritionists now suspect that high doses of vitamins and minerals -- believed by some to prevent cancer -- might actually be harmful.

Think about this:

The American Medical Association journal JAMA recently reported that high doses of antioxidant supplements can be harmful. Vitamin advocates challenged the analysis, saying it excluded large studies from China and Italy showing antioxidant supplements lowered mortality risk.

Consumers still should read labels carefully.

"Some of the things called daily vitamins can be higher than what we think is desirable," says one researcher who urges consumers to look for something about 100 percent of the daily value. That's really all people need, she declares. But a healthy diet is still most important and can prevent the need for supplements altogether. Yet for those who are sick, don't have access to nutritious food or for some other reason cannot eat well, the 100-percent rule is a good guide.

Oh no. I think I 'm headed for melanoma. At the very least, I seem to have a very high risk for developing the disease, thanks to my once-stubborn pursuit of a silly tan.

Think about this:

A review of seven different studies concludes that using a tanning bed under the age of 35 -- I'm so guilty -- can increase the risk of melanoma by 75 percent. Even those who have ever used indoor tanning were 15 percent more likely to develop the disease.

We're talking the deadliest form of skin cancer here. So deadly some experts are recommending strong measures to restrict the use of tanning beds by young people. Adults should be discouraged from tanning, some say, but access should be limited for those under the age of 18.

New Jersey already has regulations in place -- those under 14 are banned from tanning salons and anyone between 14 and 18 must have parental consent.

If I could turn back time, I would listen to my grandma. She told me the sun -- and tanning beds too -- were no good. But I was young. And I didn't care.

Now I'm older. And I care. But it may be too late. It seems this could be one lesson I learn the hard way.

I heard the statistic twice this past weekend -- once from a friend who is a drug rep for a prostate cancer drug and once from a friend with a family member struggling with prostate issues.

I had never before heard what hit my ears a few days ago, and I was quite shocked to learn this new cancer tidbit -- so shocked I did some research and discovered that what my friends told me is sadly accurate.

The good news is that the death rate for prostate cancer is going down, and the disease is being found earlier than ever before. The startling news is what I present today as my Thought for the Day.

Think about this:

Nearly 80 percent of men in their 70s develop prostate cancer.

I just received my University of Florida alumni magazine and right smack in the middle of the publication is a story about cancer. The gist of the article is that there's an explosion of effort and activity in cancer research at this institution -- much like all over the nation -- and featured are all sorts of new cancer techniques and strategies and treatments. But one thing in particular stood out to me. What I read -- in the space of just two short sentences -- jumped off the page and really made me think.

This one thing is what I am about to share, and I'm calling it my Thought for the Day. It's a great morsel of information -- short, sweet, easy to digest, and perfectly powerful -- and so I invite you to read on, let this string of words sink into your mind, think about it over the course of the day, and then determine how you might use it in your own life. And then come back tomorrow, when another Thought for the Day will await you.

Think about this:

More than half of all cancer deaths can be prevented by maintaining a healthy lifestyle. Poor nutrition, obesity, physical inactivity, and cigarette smoking together account for 63 percent of all cancer deaths.

All Macy's stores nationwide are having a Macy's Shop for a Cause day on September 16th, 2006. If you make a five dollar donation to breastcancer.org then you will receive a 20 percent off discount card for the entire day.

Breastcancer.org is a non profit organization and their mission is to help women and their loved ones make sense of the complex medical and personal information about breast cancer, so they can make the best decision for their lives. This year is breastcancer.org's fifth anniversary.

There are more fundraisers coming up in the month of September on the breastcancer.org website. There might be something in your area so check it out!

The Food and Drug Administration (FDA) has issued a health warning to consumers that drinking high-strength hydrogen peroxide products sold online are extremely corrosive and can lead to stomach irritation or ulcers; and injecting the solution intravenously could lead to blood vessel inflammation, bubbles in blood vessels and potentially life-threatening allergic reaction.

In addition, the FDA has issued warnings to two Texas-based firms, DFWX and Frad 35 Inc., who are illegally selling 35 percent hydrogen peroxide products to treat AIDS, cancer, emphysema and other serious diseases.

To understand the strength of the hydrogen peroxide the FDA is referring to, high-strength hydrogen peroxide is 35 percent while the strength of hydrogen peroxide solution sold over-the-counter for disinfecting wounds is only 3 percent.

According to the news release, Donald Worden, owner of Frad 35 Inc., said he would continue selling his 35 percent hydrogen peroxide product and that his website provided links to information about potential medical uses but that he was not promoting his products for that purpose.

The FDA has issued a warning about this product. You have been warned.

According to researchers, a new blood test can accurately detect early stage non-small-cell lung cancer, the most common type of lung cancer, with 90 percent accuracy. This advancement in lung cancer diagnosis has the potential to eliminate the sometimes inaccurate test results reported with CT scans. After a CT scan, biopsies are often required to confirm the presence of lung cancer. The accuracy of the blood test reduces the number of biopsies done in the need to confirm detection of lung cancer. Another benefit of the blood test is that it can detect non-small-cell lung cancer years before traditional X-ray tests can.

The blood test to detect non-small-cell lung cancer is licensed to 20/20 GeneSystems. Additional clinical studies will be done to confirm the accuracy of the blood test, and if it proves to be as accurate as the initial studies have indicated, this blood test will become the first blood test to predict cancer since the introduction of a prostate specific antigen blood test, PSA, to detect prostate cancer.

This research is published in the Journal of Thoracic Oncology.

There is no doubt that the new cervical cancer vaccine -- Gardasil -- is revolutionary. But writer Peter Sprigg, vice president for policy at the Family Research Council, shared yesterday on the washingtonpost.com that the public should consider two cautions when digesting the news of this breakthrough medical advance. He urges us, first, to understand that the vaccine is not 100 percent effective. It is 100 percent effective for the strains of human papillomavirus (HPV) it targets -- but it leaves 30 percent of HPV strains that cause cervical cancer untouched. And it does not prevent all cases of genital warts either. So it is largely effective. But it does not completely eradicate the disease.

Sprigg also believes that parents should determine whether or not their young girls get the vaccine -- that it should not be mandatory. Mandating the vaccine might be in order if HPV was spread through blood or casual contact. But it is not -- it is spread by sexual contact. And families of young girls might best address this issue through education on behavioral issues alone, without interference from the government.

The wonder of the cervical cancer vaccine is not in question by this writer and the council he represents. But there is often a full picture that lingers behind good news and sensational headlines. And Peter Sprigg offers his take on what he believes lingers behind.

My brother-in-law came up to me tonight with his iPod and handed me his headsets. A cue to put them on, I guessed -- and so I did. A song played and right away I liked what I heard. It was the exact type of music I like -- with a grungy, rock kind of sound. I figured Jack knows what I like and was sharing a new song with me. Which he was -- but there was something more to it. It wasn't just a good song -- it was a good song about cancer, with a message of hope and strength and living through the struggles of a life that has been shaken. Written by Scott Leger of the Austin-based band wideawake, Maybe Tonight, Maybe Tomorrow is dedicated to the millions of people affected by cancer -- those who have lost, those who have survived, those who fight and volunteer and support and research and raise awareness and give and inspire. And for those without cancer too really. For anyone who is faced with forces that threaten the most precious of assets -- time.

Lori is driving across the country trying to raise money -- $9,490 to be exact -- for breast cancer research. One dollar for every day that her mother battled breast cancer. And she is close. She has already raised $8,629.40 through sponsors and donations and has traveled a whopping 6,874 miles since she first hit the road in May. She's been through California and Nevada and North Dakota and Utah and Wyoming -- among other places. She camps and hikes and canoes and stops to see friends along the way. Like the friend she will visit today in Minnesota -- a friend who is surviving breast cancer. She stops at roadside attractions and restaurants and charming little overnight resorts. She stops for photos and to write on her blog -- and through it all, she reflects on the mother she lost almost one year ago. And she raises hope for others fighting breast cancer by giving 100 percent of her donations to The Breast Cancer Research Foundation. I am impressed. I am honored. I am in awe of what Lori is doing. Because I know I could never do it.

I don't like to travel -- and anything more than a three-hour trek in any direction, by any mode of transportation, is too much for me. And while I have traveled in my life to faraway places -- England, France, Germany, Italy, and more -- I do not enjoy any part of the process that gets me to and from my destinations. I'm not sure why. I just don't like it. But I admire those who venture to distant lands. And those who find excitement in a spontaneous trip. And those who tackle the long road across state lines for the pure thrill of it. And those -- like Lori -- who do it so others can benefit. So others can survive the disease that takes so many lives. The disease that took Lori's mom.

Inflammatory breast cancer accounts for only 1 percent of all breast cancers -- yet this disease that mostly affects young women and teenagers can be especially aggressive. And sadly, many of the symptoms  -- inflammation, irritation, itching, redness, blotching, and increase in size -- are mistaken for infection. Not until further, more serious symptoms arise does breast cancer become a possible explanation. A breast may become firmer, warmer, and may grow in size more each day. Although distinct lumps are not apparent, the skin may become dimpled and increased tenderness can occur. Large veins may surface, and cancer may spread in sheets or nests instead of from a solid tumor -- making it virtually impossible to detect a lump. While mammograms are usually ineffective for detecting this cancer, certain biopsies and MRI testing can reveal and confirm a diagnosis -- which years ago was much scarier than it is today with new studies and research and therapies that can better fight this aggressive form of cancer.

A combination of the drugs Lapatinib and Capecitabine have been used to treat inflammatory breast cancer in women who have not responded to standard therapies. And this combination is doubling the patient's survival time. Like like the drug Herceptin -- used for many young women with another aggressive form of breast cancer -- these drugs may be the innovative new approach for saving even more young women.