foundations of biohacking:
systems biology basics

Causal Loops, Stress, Sleep Debt, and Metabolic Switching

Why stress and sleep debt feel “sticky” in the body Stress rarely acts like a single on/off switch. Instead, it launches...

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foundations of biohacking:
systems biology basics

Sleep Debt Systems Biology: How HRV Shapes Glucose Control

Sleep debt as a systems biology problem Sleep debt is often described as feeling tired. In systems biology, ...

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foundations of biohacking:
systems biology basics

Autonomic Nervous System Inflammation: CRP, IL-6, TNF-alpha Explained

Why autonomic signaling can show up in inflammation blood tests Inflammation is often discussed as a purely immune phenomenon, but t...

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foundations of biohacking:
systems biology basics

Homeostasis vs Allostasis: Wearable Trends in HRV

Wearables, HRV, and the real biology behind stress Heart rate variability (HRV) has become one of the most discussed m...

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foundations of biohacking:
systems biology basics

Causal Loops: Sleep, HRV, Glucose Control, and Inflammation

Why sleep affects glucose and inflammation through feedback loops Sleep is often discussed as a single behavior—get more, sleep bet...

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foundations of biohacking:
systems biology basics

Autonomic–Immune Link: CRP, IL-6, TNF-α in Stress Physiology

Stress physiology is not just “mental”: it reshapes immune signaling Stress is often described as a psychological state, but biologically...

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foundations of biohacking:
systems biology basics

Allostasis vs Homeostasis: Wearables, HRV, and Resting Heart Rate

Why “balance” isn’t the whole story Wearables increasingly report metrics like resting heart rate (RHR)...

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foundations of biohacking:
systems biology basics

Homeostasis vs Allostasis: Wearables Metrics for HRV and Resting HR

Why “homeostasis” vs “allostasis” matters for wearable metrics Wearables can track heart rate, resting heart rate, and heart rate v...

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foundations of biohacking:
systems biology basics

Systems Biology: HRV, Sleep, Inflammation, and Metabolism Feedback Loop

Systems biology approaches human health as a network of interacting processes rather than a collection of isolated variables. Wi...

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foundations of biohacking:
systems biology basics

Biomarkers Disagree: HRV vs RHR vs SpO2 vs CGM Interpretation

Modern physiology tracking increasingly relies on multiple biomarker streams. Yet it is common to see disagreement: HRV trending down while resting heart rate rises; SpO2 appearing stable while glucose metrics show stress-related changes; or CGM-derived variability increasing without a corresponding HRV shift. Th...

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foundations of biohacking:
systems biology basics

Systems Biology: How HRV, Sleep, Inflammation, and Metabolism Connect

Why this connection matters in systems biology In systems biology, the body is treated as an integrated network rat...

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foundations of biohacking:
systems biology basics

Conflicting Wearable Signals: HRV vs RHR vs BP Variability Systems Approach

Overview: what “conflicting signals” look like When a wearable reports HRV, resting heart rate (RHR), and blood pre...

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foundations of biohacking:
systems biology basics

Autophagy Signals: mTOR, AMPK, and Nutrient Control

Autophagy signals and nutrient sensing: why mTOR and AMPK matter Cells do not simply “consume” nutrients; they continuously inte...

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foundations of biohacking:
systems biology basics

Interpreting Wearable Trends: Causation vs Correlation Causal Loops

Overview of the problem symptoms users may experience Wearables can make patterns feel obvious: sleep duration drops, str...

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foundations of biohacking:
systems biology basics

Homeostasis vs Allostasis: Wearable HRV and Resting Heart Rate Metrics

Why this myth matters for wearable HRV and resting heart rate Wearable devices can estimate two popular signals: resting heart ra...

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foundations of biohacking:
systems biology basics

HRV vs Resting Heart Rate Disagree: Troubleshooting Guide

When HRV and resting heart rate disagree, what’s going on? It’s common to notice a mismatch between HRV (heart rate variabil...

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foundations of biohacking:
systems biology basics

Systems Biology: HRV, Sleep, Inflammation, and Metabolism

Why these four signals belong together Heart rate variability (HRV), sleep, inflammation, and metabolism a...

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foundations of biohacking:
systems biology basics

Metabolic Switching: Insulin, Ketones, and Mitochondrial Signals

Why metabolic switching depends on insulin and mitochondrial signaling Metabolism is often described as a set of pathways—glycolysis, fa...

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