Stress &
Its Impact on Training
Your body doesn't distinguish between work stress, relationship stress, and training stress. They all draw from the same recovery pool. A hard life week is a hard training week, whether you trained or not.
How stress affects the body
The same system
handles all of it.
handles all of it.
Elevated cortisol
Chronic stress keeps cortisol elevated. High cortisol suppresses testosterone, impairs muscle protein synthesis, and promotes fat storage — the opposite of what training is trying to achieve.
Slower tissue repair
The body deprioritises repair and growth when under threat. Sustained stress signals mean the system stays in a catabolic (breakdown) state rather than anabolic (building) state.
Disrupted sleep
Stress raises arousal and impairs sleep quality. Poor sleep then amplifies cortisol — creating a cycle that progressively degrades recovery capacity.
Reduced training output
Mental fatigue is real physiological fatigue. High life stress directly reduces strength, focus, and tolerance for training load — even when you feel like you "should" be fine.
High stress periods
How to train when
life is heavy.
life is heavy.
01
Reduce volume, not frequency
Keep showing up — but do less. Fewer sets, same movements. Maintains the habit and the stimulus without adding recovery demand.
02
Train by feel, not by plan
In high-stress weeks, RPE should guide load rather than the numbers on paper. Push when the body allows. Pull back when it doesn't.
03
Prioritise recovery inputs
Sleep, protein, hydration, and low-intensity movement become even more important when external stress is high. This is when the basics matter most.
04
Recognise training as a stress reducer
Done appropriately, training lowers cortisol and raises endorphins. It doesn't have to be skipped in hard times — just adapted.
The framework
Three rules for
stressful periods.
stressful periods.
I
Adjust load, don't disappear. A reduced session beats no session for maintaining progress and managing stress hormones.
II
Account for life stress in your recovery budget. A high-stress week requires more recovery, not more training. Plan accordingly.
III
Don't add training guilt to life stress. Missing sessions in genuinely hard weeks is intelligent management, not failure. The programme will be there when the dust settles.
The Naked Truth
You were exhausted from work, barely sleeping, running on adrenaline — and you trained at full intensity every day and wondered why you felt worse. Stress is stress. Your body doesn't read the label.
Manage your total load, not just your training load. The goal is a body and life that work together — not against each other.