Category Archives: Uncategorized

Continuous Heart Rate Variability Recording for $70

Heart rate is an interesting signal when you’re working out, and it’s sort of interesting indicator of cardiovascular health when you’re resting. But if you look at the variation in the intervals between heartbeats (HRV: heart rate variability), then you get a good indicator of emotional arousal, stress, breathing rate, and even sleep quality. So,…

Watch Out for Iron Overload

Janet and I went to the Ancestral Health Symposium 2012 in August. Half of the sessions were devoted to the most important issue in nutrition today: whether one should eat minuscule amounts of carbohydrates, or whether one should eat no carbohydrates. Really. They got quite into it in the panels. There was one session that…