Marks Daily Apple
Serving up health and fitness insights (daily, of course) with a side of irreverence.

Archive for the ‘ Sun Exposure ’ Category

14 Jul

Dear Mark: Sun Exposure and Eyesight; Vasectomies

For today’s edition of Dear Mark, we’ve got a quick two-parter. First, I discuss the pros and cons of ocular sunlight exposure in children (and adults). Should kids leave the house with a pair of wraparound goggles every single time, or are their prepubescent eyes safe without them? If too much sun exposure is bad, […]

1 Jul

Why Kids Need the Sun

This is a guest post from Michelle Fitzpatrick of Happy Paleo Kids. Michelle has worked with special needs children and their families for over 13 years to promote development and mental health. She adopted a “Paleo Diet” to lose weight after baby number 3, and quickly saw that the benefits of eating nutrient-rich, plant-and-animal-based foods […]

30 Jun

Dear Mark: Red Meat and Breast Cancer, Net Carbs, and Solutions for Excess, Unavoidable Sun

For today’s Dear Mark, we’ve got a three-parter. First up, I discuss the latest study claiming that red meat will kill us all. Or maybe it’ll be killing roughly half of us all, seeing as how this paper concerns red meat and women’s breast cancer risk. Next, I give my position on the “net carbs” […]

29 Apr

Why Some Sun Exposure Will Protect You from Deadly Skin Cancer

How does sun exposure relate to skin cancer risk? The simplistic, popular story is that sunlight exposure has a linear relationship with cancer, similar to how we view smoking. None is safest and each additional minute in the sun will increase our chance of getting cancer. Many people (maybe most) therefore live in a world […]

12 Nov

How to Engineer a Successful Day of Sunbathing

Last week, I walked you through the typical day of someone pulling out all the stops in the pursuit of a perfect night’s sleep. Today, I’m going to show you how to optimize the pursuit of another vital factor in our health: sun exposure. Unlike sleep, too much sunlight can hurt you if given enough […]

19 Nov

Dear Mark: Wheat and Asthma, Minimalist Winter Shoes, High-Fat Rat Cognition Study, and Sun Exposure Timing

Today’s edition of “Dear Mark” runs the gamut. The topics will be somewhat familiar, since I tackle wheat, minimalist shoes, high-fat diets in the news, and vitamin D, but with interesting spins on each. First, I discuss the link between wheat and asthma. Next, I do a somewhat exhaustive search of the available winter minimalist […]

13 Jun

How to Work Outside (Even If You’re a Desk Jockey)

Last week, I told you why working outside – at least from time to time – can be helpful, relaxing, and even performance-enhancing. A number of you emailed me directly, or left comments thanking me for the idea. Most people were on board with working outdoors, but mostly in theory, because let’s face it – […]

19 Dec

Dear Mark: Sun Beds, Skipping Breakfast, Cooking with Essential Oils, and Glycerol

It’s Monday, which means it’s time for another round of Dear Mark questions and answers. This week I’m answering four reader inquiries. First, I discuss the suitability of tanning beds, and try to give the best answer I can muster given the lack of hard evidence either way. Next, I cover whether or not a […]

26 Jul

7 Home Remedies to Relieve a Sunburn

People who like to say an ounce of prevention is worth a pound of cure are smug jerks, especially when it comes to sunburns. While they were eating spoonfuls of tomato paste, canned flamingo, and fish oil, nibbling on grape seeds, using portable vitamin D test kits, and smearing green tea all over their bodies, […]

19 Jul

8 Natural Ways to Prevent a Sunburn (And Sunscreen’s Not One of Them)

As summer descends upon the world, a young Primal eater’s fancy turns to playful frolicking in the sunshine. And when you’re frolicking, the last thing you want to do is slather a bunch of horrible-smelling, greasy, overpriced sunblock all over your body. It makes you slippery and imbues your countenance with a deathly pallor that […]

28 Jun

Seeing the Light: Why Sun Exposure May Be Good for Your Eyes

Having immersed myself in all things Primal for so long, I find myself viewing nearly everything through the prism of human evolution. Is this food, activity, environmental stimulus, or social more an evolutionary novelty? If so, might it possibly conflict with or impede our pursuit of good health? Is it benign? An improvement, even? Grok […]

14 Feb

The Importance of Play, Long Walks and Outdoor Workouts, or Why the Optional Stuff Isn’t Actually Optional

Before I get to today’s Monday Musings I wanted to give a shout out and big thanks to everyone that came out the inaugural PAST in Southern California this weekend. It was wonderful meeting each of you in person. And because of you the first event was a smashing success. So thank you! Coming out […]

5 Jan

Dear Mark: Seasonal Affective Disorder and Light Box Therapy

With holiday fun come and gone, it’s the time of year when we all truly settle into winter. Spring is a long way off at this point. The cold and darkness aren’t going anywhere any time soon. Most people find their way through the season with a mixture of enjoyment and impatience (and maybe a […]

6 Dec

Monday Musings: Vitamin D, Toxic Strawberries, New PUFAs Coming Soon

A quick look at Google Trends shows a clear, undeniable trend: that of regular folks armed with curiosity, questions, and Internet connections taking their health into their own hands and searching for information on “vitamin D.” Search traffic for the keywords is at an all-time high, having steadily increased for years. But just as people […]

16 Nov

Dear Mark: Sun Exposure and Glass

These days many of us go to work in the dark and leave greeted by the same. Those lucky enough to have windows next to their desks or work stations might think, “Hey, at least I get some sun exposure during the day.” But how does sun exposure through glass compare with direct sunlight? One […]

15 Jun

Vitamin D: Loose Ends

Okay, I’ll admit it. I may have spoken out of turn a couple week’s ago when I tried to completely cover vitamin D in a mere three posts (Deconstructing Vitamin D, Vitamin D: Sun Exposure, Supplementation and Doses, Vitamin D: Confounding Factors). A bunch of questions popped up in the comment boards – so here’s […]

3 Jun

Vitamin D: Confounding Factors

Yesterday I recommended 4000 IU of vitamin D each day as a good starting point for most people. Though, it’s difficult – nay, impossible – to provide a perfect, universal prescription for vitamin D3 intake. People, and their lifestyle behaviors and environmental conditions are just too different. It’s like with diet. Everyone does well with […]

2 Jun

Vitamin D: Sun Exposure, Supplementation and Doses

From the presence of vitamin D receptors in our cells and vitamin D factories in our epidermis, along with the central role vitamin D plays in calcium metabolism, immunity, and gene expression, it’s pretty clear that having adequate vitamin D is an essential component of being a healthy, successful homo sapien. And yet, many health […]

1 Jun

Deconstructing Vitamin D

Before phototropic plants began bending toward sunlight, before jellyfish developed ocelli, the light-sensing organs that allow them to distinguish between up (sunlight) and down, before the bikini-clad beach denizens began tanning en masse, and before the first house cat followed the sliver of sunlight around the room all afternoon, our primitive, microscopic marine forebears were […]

5 Jun

Purposely Misleading Marketing Lingo: Sunscreen Edition

As you may know, I’m not a huge fan of sunscreen lotion. I just don’t think it’s all that necessary. If you’ve had enough Vitamin D skin production for one day, and you’re worried about burning up, using physical barriers – like shirts, hats, umbrellas – to impede the sunlight is better than slathering your […]

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