The Journal

A single hormone blood test tells you very little about how your hormones are actually behaving. Timing, metabolite pathways, and cortisol patterns are invisible to standard testing — and that's where the most clinically useful information lives.

The MTHFR gene affects how your body converts folate, produces neurotransmitters, and regulates one of its most fundamental biochemical processes — methylation. Here's what a variant actually means, and why it's neither catastrophic nor irrelevant.

Most people assume "normal" blood test results mean good health. They don't. Standard Medicare testing uses population-based reference ranges — not optimal ones. Here's what's being missed, and why it matters.