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Don't Let the Sun Shine Down on Me (It's Too Complicated!)


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I'm impressed by how much we struggle with seemingly simple health decisions when faced with sorting through too much information.

Buying sunscreen: It's a simple task, right? Most of us do it every year about this time. And among actions we can take to reduce our risk of cancer in general and skin cancer specifically, this choice is fairly important.

So my colleague was surprised to hear this snippet of conversation as she contemplated her annual purchase at her local drug store:

"There are over 30 different kinds of sunscreen here. What's the difference?"

"I don't even know what SPF means. Broad spectrum is good, right?"

 "Yeah, and I wonder whether this whole thing isn't a lot of marketing hype – you probably get the same thing whether you pick one rated 30 as one rated 100+."

"You know what, forget it. I'll get the cheap one and be done with the whole thing."

His friend could have said (as I am apt to) "Hey, look those questions up on your phone – that's what it's for" and spent a good five minutes going from site to site to get his questions answered.

Or they could have gotten distracted by the rumors of toxicity "You know, I've heard there is a poisonous chemical in them all anyway" – and abandoned the whole plan. An informal poll of Real Simple readers found that this was the most commonly held excuse for not using sunscreen. Notions that there are poisonous chemicals in sunscreens or that sunscreen contributes to a vitamin D deficiency have been countered by strong scientific evidence. Yet, like resistance to vaccines, such popular myths provoke responses that are inured to countervailing evidence.

The guys in the store might have had a car full of sweaty, excited kids on the way to the beach, concerned about the smelliness and stickiness of the different brands, and just turned their attention to cosmetic marketing claims, as opposed to the health-related ones.

The cheap stuff was probably just fine. At least they got some sunscreen, maybe used it a couple times over the course of the summer, perhaps prevented a bad burn or two and then summer was over.

This type of sunscreen decision is replicated hundreds of times by individuals in the course of a week as we view similarly diverse arrays of products with health, convenience and cosmetic claims competing for our attention. Think yogurt, Gatorade, running shoes, breakfast cereal...

Given the ubiquity of such products and the swirl of marketing and science-based or non-science-based information surrounding each, I'm wondering three things:

  1. What do health authorities/professionals assume about the level of knowledge we bring to these decisions as part of our contribution to our health?
  2. What do we expect of ourselves?
  3. How are we doing at maximizing the wisdom behind our choices?

With regard to the assumptions others make about us: Authorities consistently overestimate our literacy about specific technical health topics like the meaning and relative importance of Sun Protection Factor. They overestimate both the sophistication of and patience for search strategies we use for in-the-moment information. More important, however, is the common assumption that objective, non-commercial public health messages are getting through to us. I'd guess that most of us are probably not making good use of marketing or scientific information that could guide our choices.

With regard to our expectations about our ability to make good choices about such products: This kind of forced, moment-of-purchase choice probably makes some of us anxious when we find ourselves making a decision based on the picture on the label or relying on price as a proxy for quality. But for many of us, what little we know (or think we know) – the rumors, the semi-remembered news articles – provides us with just enough confidence to believe our knowledge is sufficient.

With regard to how we are doing? We're probably "standing knee-deep in the river, dying of thirst," in the glaring midday sun with SPF 4 sunscreen slathered all over.

More Blog Posts by Jessie Gruman

author bio

Jessie C. Gruman, PhD, was founder and president of the Center for Advancing Health from 1992 until her death in July 2014. Her experiences as a patient — having been diagnosed with five life-threatening illnesses — informed her perspective as an author, advocate and lead contributor to the Prepared Patient Blog. Her book, AfterShock, helps patients and caregivers navigate their way through the health care system following a serious or life-threatening diagnosis. The free app, AfterShock: Facing a Serious Diagnosis, offers a pocket guide based on the book. | More about Jessie Gruman

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Lifestyle and Prevention   Inside Healthcare   Evidence-Based Medicine   Jessie Gruman   Promote your Health   Women's Health   Men's Health  

Comments on this post
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gregkumar says
June 25, 2014 at 2:57 AM

Hi Jessie Gruman ,

Great info on Sun Shine. I've started becoming proficient myself in Sun Shine and have actually been selling video tutorials to earn some additional revenue. It's pretty easy to do and I thought you might be interested so check it out when you get a chance, it's free to sign up