So far as I know, the oldest in the English language at least, is Banting's Letter on Corpulence. Having lost weight and dramatically improved his health on a low carbohydrate diet. Banting wrote and self-published the book back in the Mid-Victorian era, and he distributed it for free.
Read More »Exercise and Cold Weather: Tips to Stay Safe Outdoors
Being active outdoors involves having a plan to handle those potential hazards. Preparation and knowledge will give you the tools to use that low carb energy all year round.
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