Signs of Overtraining (and Why Busy Professionals Miss Them)

The main signs of overtraining are performance that keeps falling despite effort, a resting heart rate that sits higher than usual, broken or unrefreshing sleep, aches that linger for days, frequent colds, and a flat, irritable mood that makes training feel like a chore. Any one of these on its own means little. Several together, lasting a fortnight or more, means you are doing more than you are recovering from. Busy professionals miss the pattern because every one of those symptoms also looks like a hard month at work, so they blame the job and train harder to compensate.

Overreaching, under-recovery and true overtraining

The words get used loosely, so it helps to separate them, because the fix is different for each.

• Functional overreaching is normal. A hard block of training leaves you a little tired and slightly weaker for a few days, then you bounce back stronger. Good programmes plan for it.
• Under-recovery is the common one. The training itself is reasonable, but sleep, food, alcohol and stress mean you are not absorbing it. Performance stalls and you feel worn down. A week or two of sensible adjustments usually sorts it.
• Overtraining syndrome is rarer and more serious: a long-lasting drop in performance and wellbeing that takes weeks or months to resolve. It is mostly seen in endurance athletes on very high volumes. Most people who think they have it actually have under-recovery that has been ignored for too long.

The practical point: you rarely need a dramatic diagnosis. You need to notice the drift early, while it is still a two-week problem rather than a two-month one.

The signs, grouped the way they actually show up

In the session

• Warm-up sets feel heavy. Not the top set, the warm-ups.
• Numbers you hit easily three weeks ago are now a grind, across several lifts, not just one.
• Your usual conditioning work leaves you more breathless than it should, or your heart rate climbs faster than normal.
• Technique gets scrappy earlier in the session. Bar paths wander and you lose position on reps that used to be clean.

Outside the session

• You fall asleep fine but wake at 3am wired, or you sleep eight hours and still wake heavy.
• Your resting heart rate, taken first thing in the morning, sits noticeably above your normal for several days running.
• Muscles stay sore for three or four days after sessions that used to leave you sore for one.
• You catch every cold going round the office.
• Appetite changes: some people lose it, others crave sugar all afternoon.

In your head

• You dread sessions you used to look forward to.
• You are shorter with people than usual and concentration at work is patchy.
• You start bargaining: “I’ll just do the warm-up and see.” Then the warm-up feels awful.

Why people with demanding jobs miss it

I work mostly with professionals over 30, and the pattern is consistent. Three things hide the warning signs.

The symptoms overlap with work stress. Poor sleep, low mood, short temper and a lingering cold are exactly what a heavy quarter feels like. When the cause looks obvious, nobody looks for a second one. The training is quietly adding to the load rather than relieving it.

Discipline is the default response to a problem. High achievers tend to treat a bad session as a test of character. Lifts going backwards? Add a session. Feeling flat? Push through. That instinct built their careers and it works for most problems. It is the wrong tool when the limiting factor is recovery.

Training is the one thing they control. When work is chaotic, a hard session feels like order. That is a genuinely good reason to keep training. It is not a good reason to make every session as hard as possible.

There is also a subtler trap. Many busy people train in bursts: nothing for two weeks during a deal, then five sessions in five days to “catch up”. Fatigue does not work like a bank balance you can top up. Cramming creates the soreness and sleep disruption of overreaching without the steady build that makes it productive.

A five-minute weekly check

You do not need a wearable to catch this, though one can help if you treat it as a prompt rather than a verdict. Every Sunday, score these five items from 1 (poor) to 5 (good):

Item	What to ask yourself
Sleep	Did I wake rested on most days?
Performance	Did my main lifts move, hold or slip?
Soreness	Did aches clear within a day or two?
Mood	Did I want to train?
Life load	How heavy was work, travel and family this week?

A total of 20 or more: carry on. Between 14 and 19 for one week: note it and watch. Below 14, or two weeks in a row in the middle band: change something now. The trend matters far more than any single number, which is why a written training log beats memory every time.

What to do when the signs line up

1. Cut volume first, not frequency. Keep turning up, but drop the number of hard sets by a third to a half. Keep the weights moderate. This is essentially a planned deload week, and it protects the habit while the fatigue clears.
2. Stop the extra conditioning. If you have been adding runs or classes on top of lifting, pause them for a week. Swap in easy walks.
3. Protect sleep like a meeting. A fixed wake time and a cut-off for screens and email does more than any supplement. The NHS has sensible advice on sleeping better that is worth five minutes.
4. Eat enough. Under-eating while training hard is one of the most common causes of under-recovery, especially in people who are also trying to lose fat. A modest deficit is fine. A steep one combined with high volume is not.
5. Look at alcohol honestly. Two or three evenings a week of client dinners will affect sleep quality more than people expect.
6. Reassess after seven to ten days. If the weekly score has recovered, build back up gradually. If it has not, take more time off hard training and look wider.

Check with your GP first if you have unexplained weight loss, persistent exhaustion that rest does not touch, chest pain, palpitations, dizziness, or if low mood is lasting more than a couple of weeks. Fatigue has many causes, from low iron to thyroid problems, and training is only one of them.

Mistakes that keep people stuck

• Taking a full week off, then returning at full volume. The rest helps, then the first week back recreates the problem. Return at around two-thirds of your previous load.
• Changing the programme instead of the dose. A new routine feels fresh, so you push hard on it, and you are back where you started within a month.
• Treating every session as a test. Most sessions in a good programme should finish with a couple of reps in reserve. Only a few should be genuinely all-out.
• Ignoring the rest of the week. Training three times a week can be too much if the other four days include two late flights and no sleep. Plan rest days around your diary, not just your programme. A personal trainer who sees your whole week can do that planning with you.

Why an outside eye catches it sooner

The person least able to judge your fatigue is you, mid-quarter, with a deadline. A coach watching your warm-ups, logging your numbers and asking how you slept will usually spot the drift a week or two before you do. In the studio I adjust the session on the day: same plan, different dose, based on how you move in the first ten minutes. That is one of the quieter benefits of coached 1-1 training in Highgate, and it matters most for people whose lives are unpredictable.

If work is the main driver, the post on how stress affects training covers how to scale a programme up and down around a heavy diary.

Questions we get asked

How long does it take to recover from overtraining?

Under-recovery usually clears in one to three weeks of reduced training and better sleep. Genuine overtraining syndrome can take months, which is why catching the early signs matters.

Can you overtrain lifting three times a week?

From the training alone, rarely. Combined with poor sleep, a steep calorie deficit and a stressful job, yes, you can under-recover on almost any schedule.

Should I train through it if I feel a bit flat?

One flat day, yes, at a reduced effort. A flat fortnight is a signal to cut volume rather than push.

Is a higher resting heart rate always a sign of overtraining?

No. Illness, alcohol, poor sleep, heat and stress all raise it. Treat it as one signal among several, not a diagnosis.

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