Erik Nelson/LinkedIn
Mar 19, 2026, 15:01
Erik Nelson: The Biomarker that Connects Heart, Brain, and DNA
Erik Nelson, Co-Founder and Clinical Director at Human Sync, shared a post on LinkedIn:
“Homocysteine – The biomarker that connects your heart, brain, and DNA
Most people have never heard of it.
Most doctors don’t test it.
But elevated homocysteine is independently linked to cardiovascular disease, cognitive decline, and impaired methylation.
One blood test, three critical systems, and almost no one is ordering it.”

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