Summary of "The Hidden Signs You’re Overtraining And How to Fix It"

Summary — The Hidden Signs You’re Overtraining (Lee Grantham)

Core message

Overtraining isn’t only about high weekly mileage. It occurs when you do hard sessions too often without enough recovery. Even moderate volume can become overtraining if intensity and frequency outpace your recovery capacity, especially when compounded by life stressors.

Key reasons athletes get injured or stall

Rapid increases in volume (large weekly jumps).
Long runs that are too long or that suddenly get extended.
Introducing too much speed work too quickly.
Doing too many hills or switching terrain suddenly.
Too many hard sessions in a short period — frequency often matters more than total minutes of hard work.
Poor sleep, high life stress, and inadequate nutrition that reduce recovery.
Following generic “pro” training plans that don’t fit your job, family, or sleep situation.

Wellness, self-care and training strategies

Prioritise sleep: quantity and quality are essential to absorb hard training.
Reduce non-training stress where possible — life stress plus heavy training compounds injury risk.
Improve nutrition: adequate calories and recovery-focused meals are necessary for progress.
Ramp volume and intensity gradually — avoid big jumps in weekly mileage, long-run time, or intensity.
Respect session difficulty: both intensity and duration increase physiological load; track both.
Follow an 80/20 approach: most runs easy, a small proportion high-quality intervals. Pros can do more quality because they have higher total volume and recovery capacity.
Limit the number of hard sessions per week — multiple hard sessions close together commonly cause breakdowns (e.g., four hard sessions in six days is too frequent for many athletes).
Schedule strength sessions so they don’t impair key interval or long-run quality.
Use active recovery and full rest days after big sessions — sometimes a nap/siesta and a strict rest day are necessary.
Respect recovery windows immediately after big workouts (eat, rest, prioritise sleep).
Treat long slow runs as meaningful load — they still require recovery time afterward.
Transition to new terrain, hills, or treadmill-to-trail gradually so tissues can adapt.
Tailor your plan to your life — don’t blindly follow pro-level or off-the-shelf plans if you have work, family, or limited sleep.
Train to peak for one event: build fatigue resistance but plan to be fresh on race day rather than constantly tired.
Set realistic micro-goals within a block (example: a 13-week marathon block with a 10-day taper; hitting ~80% of key sessions can still put you in PB shape).

Practical signs you’re overtraining or close to it

Persistent fatigue and inability to hit session paces.
Regular niggles or repeated injuries.
Reduced performance (for example, can’t hold expected marathon pace).
Increased illness or prolonged recovery times after normal workouts.
Mental signs: loss of confidence, constantly lowering goals, or compulsive “I must hit the pace” behavior.

Simple checklist to avoid overtraining

Track and moderate the frequency of hard sessions according to your life situation.
Limit sudden increases in weekly volume or long-run duration.
Prioritise sleep, nutrition, and stress management as integral parts of training.
Build an aerobic base before loading lots of high-quality sessions.
Use tailored plans that distribute intensity across the week to match your recovery capacity.