FYXLIFE Knowledge Center
Insights on longevity, nutrition, fitness, sleep, and living well — backed by your data.
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Full Thyroid Panel: The Cascade TSH Testing Misses
TSH came back normal but you still feel off? A single number misses three downstream cascades. Here’s what a full…
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Creatine & Strength Training: What Actually Works
Already training hard but not seeing returns? This evidence verdict ranks creatine, volume protocols, and emerging supplements — worth it,…
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Cortisol & Chronic Stress: What It Does to Your Body
Tired despite doing everything right? Here’s how chronic stress keeps cortisol stuck ‘on’ — and what that’s quietly doing to…
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Lp(a) Protocol: Managing Inherited Heart Risk
Your cholesterol is fine — but have you tested Lp(a)? This step-by-step protocol covers what to test, how to act,…
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Ashwagandha and Cortisol: What Clinical Trials Really Show
Ashwagandha lowers cortisol in lab tests — but does it make you feel less stressed? 8 RCTs reveal a gap…
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Neuroplasticity Myths Adults Over 35 Should Stop Believing
Think your brain stopped changing in your 20s? Neuroscience disagrees. Crush the 4 biggest neuroplasticity myths and learn what actually…
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How Fast Do You Lose Muscle After 40? New Research
You don’t feel it, but muscle loss starts decades before you notice it. Here’s what the latest research reveals about…
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Hydration Biomarker Tests: What to Test & When
Tired, foggy, underperforming? Your hydration status may be the culprit. Here’s exactly what to test, when, and how to read…
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Full Thyroid Panel: The 3-System Cascade TSH Misses
TSH came back normal but you still feel off? See how impaired thyroid signalling cascades into metabolism, cardiovascular risk, and…