I'm a little tired of reading and writing about sunscreen. Maybe it's not the actual reading and writing that has me worn out. Maybe it's the realization that I keep reading and writing about sunscreen yet the information is just not sinking in with the masses of sun-hungry people out there -- according to the EPA, there has been a staggering 1,800 percent increase in malignant melanoma cases since 1930. Recent figures show a shocking rise in skin cancers among those in their 20s and 30s.

The experts at Canyon Ranch are weighing in on sunscreen. So here I go again, with some more about this tiring topic.

• Sunscreen contains unique chemical components which absorb ultraviolet (UV) light. When applied to the skin, the chemical molecules form an invisible, protective layer that repels the penetrating UV rays. It also helps prevent premature aging and pre-cancerous growths.

I'm sad, worried, and frustrated because of what happened to me at the beach this past weekend. I got burned. Really burned.

I thought I did everything right. I applied sunscreen, even had my husband coat my back, shoulders, and hard-to-reach spots with the powerful lotion intended to block the sun's most damaging rays. I sat underneath an umbrella while watching my boys, their own pale bodies slathered in a baby sunblock potion, as they jumped, ran, and bounced in the waves. I reapplied my sunscreen after a short stint in the pool and a stroll on the sand left my skin feeling tender. Still, I sizzled. My back is red, the skin underneath my suit straps white as can be in contrast to the bright color it borders, My chest is red and sore and itchy with bumps.

I feel sick, like I've exponentially upped my risk for skin cancer. As a cancer survivor, I feel particularly vulnerable. I not only fear a return of breast cancer, you see. I fear other cancers too. My ultra white skin already puts me at risk for sun damage. My past forays into sunbathing don't help. What happened this weekend, I'm afraid, makes things worse.

A new website assesses the effectiveness and safety of almost 800 sunscreens. The suncreen screening site was put together by the Environmental Working Group and gives detailed information about many sunscreen products. It also groups them by the types of harmful rays they're meant to protect against.

SPF numbers on sunscreens only cover UVB, the type of rays most responsible for burns. UVA is far less responsible for burning, but still can raise skin cancer risk. Only one sunscreen in five has effective UVA protection. There are ingredients that protect well against UVA, but sunlight can break down and make them ineffective if they are not formulated well.

Watch out for the commonly misleading claims -- all day protection, waterproof or chemical free products. You can check the website for sunscreens that are recommended and ones to be avoided.

We're still basking in the hot sun, bronzing our bodies in tanning beds, and playing outdoors without slathering on the sunscreen. What will it take, I wonder, for our society to catch on, to take real steps toward preventing skin cancer?

It seems education isn't enough. Most of us know by now all it takes is one bad sunburn to increase our risk of skin cancer, yet we continue to collect burn after burn after burn. Perhaps like all habit-forming behaviors -- think smoking -- it takes something tragic in our lives to inspire change. When someone we know gets lung cancer after a lifetime of smoking or someone we know develops melanoma after years of sunbathing, maybe we get the hint. Maybe

Now, I know you don't personally know this young woman -- she calls herself Miss Melanoma -- but I suggest you read her story. And I recommend you take what happened to her -- she lost part of her foot to melanoma and is currently battling a spread of the disease -- and allow it to really sink in, allow it to motivate you to take cover from the sun, before something like this happens to you. Because it can.

We're not even 11 days into Skin Cancer Awareness Month, and already my awareness about the disease has been raised several times.

Today, I learned that measuring the amount of melanin in a strand of hair can predict a person's risk for melanoma. It's all detailed in the May 15 issue of the American Journal of Epidemiology. And the study leading to this new conclusion -- that the amount of melanin in hair indicates an individual's skin type -- is quite interesting.

Think about this:

Researchers involved in a large skin cancer trial measured 2,3,5-pyrroletricarboxylic acid (PTCA) levels of 98 subjects with melanoma and 98 subjects without melanoma. They found the subjects with a PTCA concentration below 85ng/mg had more than four times the risk of developing melanoma.

An Oxford skin cancer expert is weighing in on the recent advice that we would all be wise to sport our denim, polyester, and wool when we head into the sun's harmful rays.

It's an extreme approach, says dermatologist Dr. Robert Turner who believes this skin cancer prevention guidance could push sun seekers to do just the opposite.

Think about this:

"I just don't think this is practical," says Dr. Turner. "People will think it's ridiculous and just go out anyway. If you advise people to do something that is extreme, they're more likely to go the other way completely."

Dr. Turner agrees that clothing is better protection than sunscreen -- especially for children -- but he thinks expecting people to take such drastic cover is unrealistic. He'd much rather urge people to stay out of the sun completely during the middle of the day, when the sun's rays are scorching hot.

Slathering on sunscreen protects us from the dangers of the sun. Right?

Nope, say experts who insist protective clothing and hats are the best way to cover up against UV rays, prevent skin cancer, and minimize the aging effects of the sun.

Think about this:

Most of us rely on sunscreen for skin cancer prevention. But one doctor from Zurich who just finished reviewing sun protection strategies around the world says although the predominant mode of sun protection is sunscreen, this method can be abused in attempts to extend time spent in the sun.

It's May. Summer is upon us. So is the hot sun. What a perfect time for an awareness month.

May is Skin Cancer Awareness Month. So now is the time to learn a thing or two about a disease that is largely preventable, extremely deadly, and almost 100 percent curable when caught early.

Think about this:

Someone dies of melanoma -- the deadliest form of skin cancer -- every 65 minutes. Women ages 20-29 are most at risk, with melanoma ranking as the second most common cancer in this age group. But anyone, regardless of skin color or age, can develop skin cancer.

More than one million Americans will be diagnosed with skin cancer this year -- shocking considering the cause of the disease is no secret: skin cancer is caused mostly by too much sun exposure.

OK, how about some good news?

I remember a time when I visited tanning salons and was assured by those working the front desks that tanning beds were safer than the sun. Many years later, I know this is entirely untrue.

Think about this:

The New Zealand Cancer Society experts say sunbeds should never be used as a tanning method because the risk of skin cancer is too great.

Tanning bed UV radiation is five times stronger than UV from the sun, says one doctor who also suggests people wrongly assume sunbeds are safer than the sun. Instead, they place individuals at significant risk for harm. In fact, the risk of developing melanoma, the deadliest from of skin cancer, increases by 75 percent for those who use a tanning bed before the age of 35.

The Cancer Society, wishing to ban the use of sunbeds for anyone under age 18, has commissioned further research into the use of this deadly practice.

Those venturing into space face a very serious occupational hazard -- cancer. The disease can be caused by radiation from the cosmic rays and solar flares astronauts encounter when they travel beyond the Earth's protective magnetic layer or magnetosphere.

British scientists are working on rectifying this problem by creating a Star Trek-style deflector shield to protect astronauts from radiation.

Think about this:

Scientists wish to mimic the magnetic field that protects the Earth with shields deployed around spacecraft and on the surfaces of planets to deflect harmful energetic particles.

Details, presented at the Royal Astronomical Society's National Astronomy Meeting in Preston, UK, include the following:

• The idea has been linked to the deflector shields that protect the USS Enterprise and other spacecraft on Star Trek. The shields, like on the TV show, could be switched on and off.

• In order to make the shield, scientists must generate a magnetic field and then fill it with ionized gas, or plasma. As energetic particles interact with the plasma, energy is sapped away from them, causing them to slow down.

• Protective shelters would not work on long-duration space journeys due to the drip of energized particles, thought to be as harmful as large solar storms.

"The nice thing is that magnet technology is really quite evolved here on Earth," says Dr. Mike Hapgood, from the Didcot-based research centre. The question is can you take it into space?"

A team from Rutherford-Appleton plans to build an artificial magnetosphere in the laboratory. They would eventually like to fly a test satellite which would test the technology in space.

It feels like summer here in Florida. Our temps topped 86 degrees last week and this kind of heat prompts my little boys to request their favorite summertime activity: swimming.

My kids don't quite understand that the temperature outside is not the same as the temperature of unheated water. And so as soon as warm weather arrives, they dash for their suits and insist we make a trip to the neighborhood pool. I oblige, convinced they'll want to head home once they submerge their piggy toes in pure ice.

But somehow, the temperature doesn't register. They plunge right in, dunk their heads and kick and flop and float. They are happy as clams, quivering lips and all. I am happy too as I watch their joyous moments from the privacy of my lounge chair, tucked away in the shade that borders my kids' perfect playland.

Thanks to chemo, I am the mommy who hides in the shadows during any sunny event. It's been two whole years since my last dose of toxic drugs, but something about the sun and the heat and the residual effects of my infused poison causes my skin to produce red, itchy, unsightly bumps. It happened last year and already this year and I'm wondering now if this will be a life-long nuisance, if I will be seeking shade for the rest of my years.

It's all OK really. Secluding myself from the sun's rays is a pretty healthy venture. And I'm not a real pool enthusiast. Any my boys are old enough to swim independently. And it's peaceful in the shade. So I'm not bitter about this unexpected side effect of chemo -- it's called UV recall -- and I'm not complaining. I'm merely marveling at the power of the drugs that hopefully killed all the cancer in my body, the drugs that seem to creep back year after year, perhaps reminding me that in the whole scheme of things, red, itchy, unsightly bumps are not such a bad life condition.

A new study shows men are three times more likely to develop certain types of skin cancer than women. But it doesn't have as much to do with sun exposure as we might think.

According to researchers at Ohio State University, gender differences put men at greater risk for non-melanoma skin cancers than their female counterparts.

Researchers tested the effects of UVB rays on mice and found male mice developed tumors earlier. The tumors were also larger and more aggressive than those found in female mice.

The study, published in the April 1 issue of Cancer Research, indicates it could be the higher levels of antioxidants females have in their skin that allow them to fight off tumors better.

Scientists say drivers who spend a lot of time in the car have an increased chance of developing cancer.

It's the exposure to the sun's rays through car windows that hikes the risk of skin cancer, especially for those who drive with open windows.

In a study of 898 patients with skin cancer, it was discovered that the disease spread to the part of the body closest to the side car window. In response to this finding, doctors recommend drivers tint their car windows or use ultraviolet filters in an effort to minimize cancer risk.

It's not surprising marathon runners face an increased risk of skin cancer due to long-term sun exposure. What's surprising is that so many are not taking measures to protect themselves from the sun's damaging rays.

A team of Austrian researchers, all of them dermatologists, became interested in studying long-distance runners when they realized they had collectively treated eight ultra-marathon runners with malignant skin cancer over a period of 10 years. All researchers are themselves enthusiastic runners, and two of them participate in marathons. The topic was near and dear to their hearts.

Research was conducted on white runners, so it is unclear if the findings -- listed below -- apply to black runners.

• Only 56 percent of runners in the study reported wearing sunscreen. Most were unaware of the increased risk to their skin -- and even the running researchers report it is good to be reminded to wear the right gear and regularly use sunscreen

• Many runners race with a lot of skin exposed. And sometimes training clothing covers different areas than racing clothing. Shoulders that are covered during training may be exposed during the long hours of a marathon. During triathlons, most wear a bathing suit for the duration of the event, leaving most skin susceptible to burning. Runners can lower their risk by training during morning and evening hours and wearing water-resistant sunscreen. They can wear clothing made of new fabrics that screen harmful ultraviolet rays.

• It's possible that endurance athletes may have suppressed immune systems caused by repeated tissue damage, leaving them more vulnerable to skin cancer.

While some marathon runners take pride in a bronzed skin -- proof they are running in the elements -- researchers hope runners will consider the risk they face. In some races, volunteers offer to quickly apple sunscreen on athletes who don't want to lose precious seconds as they race for the finish line. It's a start.

Between pale is the new tan and cultural or religious beliefs that require young girls to wear clothing that covers all skin areas and young girls who are restricted from outdoor activities, adolescent girls are paying the price in insufficient levels of vitamin D needed for peak bone mass -- increasing the risk of osteoporosis fracture later in life. By shunning the sun they might be decreasing the risks for skin cancer, but they are increasing the risks for 16 other cancers.

Of the 51 healthy girls tested, Saint Mary's Hospital for Women and Children in Manchester researchers found 73 percent were vitamin D deficient, and 17 percent were severely deficient in vitamin D.

Lack of a sufficient level of vitamin D was in direct correlation to the lack of exposure to sun and not to dietary intake. "This is in keeping with the fact that the main source of vitamin D is that produced by the action of solar ultraviolet B radiation acting on 7-dehydrocholesterol in skin," the team explains. "Only small amounts are obtained from dietary sources."

Aside from encouraging more outdoor activity for these young girls, the researchers stated that it remains to be determined how to meet the needs of older children and adolescents from cultures that avoid sunlight.