Dust mites are everywhere. They are true survivors, able to make it in virtually all climates and at any altitude. They thrive, however, in our homes, especially bedrooms, enjoying the humidity generated by all the breathing, perspiring, and drooling we do at night and feeding on all the skin flakes we produce. For these tiny creatures, we’re living, breathing humidifier-refrigerator-landlords who charge extremely competitive rates. Why wouldn’t they infest us?
In the last couple weeks we’ve taken a look at sleep posture, how to improve it, and modern bedding. Today we’ll take a closer look at your mattress, investigating what may be lurking inside and what you can do about it.
Yesterday I mentioned that sea vegetables are a great source of iodine. “But what is iodine?” many emailers asked. Well, dear friends, iodine is elemental. Let’s take a trip through the land of iodine to learn what it is, what it does for the human body and whether you should make an effort to get more iodine in your diet.
Iodine is a highly water-soluble trace element that’s rare in the earth’s crust, but fairly prevalent in its seas. Our bodies require it, for several reasons. Our thyroid glands use it to make thyroid hormones (T3 molecular weight is 59% iodine; T4 molecular weight, 65%), and a severe deficiency can manifest in the development of goiter, which is the thyroid gland swelling up in an attempt to keep up the pace of iodine uptake from the blood and thyroid hormone production. Lovely stuff, eh? Other common symptoms of iodine deficiency include hypothyroidism and hyperthyroidism. It can also increase the incidence of early mental retardation (iodine deficiency-related retardation is the most preventable kind, in fact), and even stunted infant brain development, provided the kid even makes it out alive: iodine deficient pregnant women are at a higher risk for miscarriages and stillbirths.
Included among last week’s “Ask Me Anything” responses were several requests for a Primal commentary on acne. A lot of people have asked for this kind of post over the years. The fact is, it’s a great question. Acne is a common problem that gives too many people too much grief. Our medical establishment’s prescription for acne generally involves dehydrating the skin into oblivion, sandblasting it with chemicals, or pumping hormones, antibiotics and potentially toxic meds into the patient. (If any of these methods have worked for you, I mean no offense. I just think people deserve better options than these.) Is there a healthier, more Primal method to a clear complexion? In a nutshell, yes. I’m not talking rabbit-in-a-hat trick but a lifestyle approach with natural options that minimize the systemic and external conditions associated with acne. Let’s look at the full picture.
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 my attempt to tie up the loose ends and cover any further wrinkles in the vitamin D story.
Living in Los Angeles, I am lucky enough to be able to get much of my Vitamin D from sunlight all year round. I still take an oral D3 supplement when I’m traveling, too busy to spend much time outside, feel a sniffle coming on, etc. I take 4-10k IU D3 from Carlson’s drops (2k IU per drop). I prefer to get my D3 from the sun, however. It is not what I know I’m missing that concerns me, but what I don’t know that I may be missing. Sunlight may yield other health benefits beyond just Vitamin D production. Oral dosing with D3 won’t give you these other possible benefits.
And I’ve also noticed that switching from a SAD to a primal diet has dramatically improved my sun tolerance (and put a metabolic disorder–porphyria–into remission.
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 the basic building blocks, stuff like meat, fat, vegetables, fruit, and nuts, but the optimal ratios are going to differ for individuals based on genetics, dietary history, activity level, and glucose tolerance. Everyone needs vitamin D, but multiple confounding factors must be taken into consideration to determine the right dosage. To start with? Yes, 4k is a good starting point. From there, though, things get considerably more complicated – as they always do.
Now, I don’t want to overcomplicate things, however. The same basic advice holds: get unfiltered sunlight, avoid burning, and take supplements when sunlight is unavailable. But I do want you to be aware of certain factors – environmental, climatic, dietary, genetic, etc. – that may affect vitamin D3 production, requirements, and availability.
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