Sănătate și wellness
Echilibrul redox este egal cu sănătatea
Redox is short for reduction-oxidation — the fundamental chemical process where electrons are transferred between molecules.
It is the engine of life, powering everything from breathing to thinking to aging.
Every breath you take, every move you make, every bond you break — is a redox reaction.
Master redox balance → master health.
It is the engine of life, powering everything from breathing to thinking to aging.
Every breath you take, every move you make, every bond you break — is a redox reaction.
Master redox balance → master health.
The Core Idea (in 1 sentence)
Redox = one molecule loses electrons (oxidized) while another gains them (reduced).
Redox in Action: A Simple Example
|
Moleculă
|
Reaction
|
Rol
|
|---|---|---|
|
Glucose
|
Loses electrons → CO₂ + H₂O
|
Oxidized (fuel)
|
|
Oxygen
|
Gains electrons → H₂O
|
Reduced (electron acceptor)
|
This is cellular respiration in your mitochondria — redox drives ATP production
Key Terms (Memorize These)
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Term
|
Înțeles
|
Mnemonic
|
|---|---|---|
|
Oxidation
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Loss of electrons (or H, or gain of O)
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OIL = Oxidation Is Loss
|
|
Reduction
|
Gain of electrons (or H, or loss of O)
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RIG = Reduction Is Gain
|
|
Redox Pair
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Two molecules that swap electrons
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e.g., NADH ⇌ NAD⁺
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Redox in Biology: The Big Picture
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Sistemul
|
Redox Players
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Biological Role
|
|---|---|---|
|
Energy (ATP)
|
NADH → NAD⁺ (Complex I)
|
1 NADH = ~2.5 ATP
|
|
Antioxidant Defense
|
GSH ⇌ GSSG
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Buffers ROS
|
|
Signaling
|
H₂O₂ (low levels)
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Activates Nrf2, insulin, immunity
|
|
Aging & Disease
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Excess ROS → protein/DNA damage
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Parkinson’s, cancer, diabetes
|
Visual: The Redox Cycle (Mitochondria)
Glucose → [NAD⁺ → NADH] → Electron Transport Chain → O₂ → H₂O + 36 ATP
(reduced) (oxidized)
(reduced) (oxidized)
- NAD⁺ accepts electrons → becomes NADH (reduced)
- NADH donates electrons → becomes NAD⁺ (oxidized)
- Cycle repeats → energy + controlled ROS
Redox & Health: The Goldilocks Zone
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Redox State
|
Efect
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Exemplu
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|---|---|---|
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Too Reduced
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No signaling, cancer risk
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Chronic antioxidants in smokers
|
|
Too Oxidized
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Damage, inflammation
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Aging, Alzheimer’s
|
|
Echilibrat
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Optimal function, longevity
|
Exercise, fasting, sleep
|
Goal: Not zero ROS, but dynamic redox balance (like a dimmer switch, not on/off).
Redox in Everyday Life
|
Context
|
Redox Example
|
|---|---|
|
Exercițiu
|
↑NADH → ↑ATP → ↑ROS → ↑antioxidants (adaptive)
|
|
Postul
|
↑NAD⁺ → ↑SIRT1 → ↑mitochondrial repair
|
|
Somn
|
Melatonin + GSH peak → redox reset
|
|
Rusted Iron
|
Fe → Fe²⁺ (oxidation) — same chemistry as in your cells
|
Quick Test: Is This Redox?
|
Reaction
|
Yes/No
|
De ce
|
|---|---|---|
|
Sugar burning
|
Da
|
C-H bonds → CO₂ (oxidation)
|
|
Battery charging
|
Da
|
Electron flow
|
|
Vitamin C neutralizing free radical
|
Da
|
Ascorbate → dehydroascorbate
|
|
Protein folding
|
Da
|
Disulfide bonds (Cys → Cys-S-S-Cys)
|
TL;DR: Redox = Electron Flow = Life
Every breath you take, every move you make, every bond you break — is a redox reaction.
Master redox balance → master health.
Master redox balance → master health.
Sursă: Grok X AI
Read Redox
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