Study says this is the real reason you're not seeing workout results — and it's not 10,000 steps

Tom's Guide

31-07-2025

If you're careful with your diet and exercise regime but still aren't seeing results, there could be something holding you back — and I'm not talking about your daily step count.
Research conducted by Welltech has identified a factor that could mean even the most consistent workout routine may fall short: stress.
In the past year alone, Welltech identified over 474K searches for stress management, and there currently seems to be a disconnect between mental health and its impact on physical performance.
David J. Sautter, a personal trainer and performance specialist who works with Welltech, discusses how stress might disrupt your recovery, increase cortisol levels and affect overall exercise results. Here's what he (and the research) had to say.
David is a NASM-certified personal trainer and Performance Enhancement Specialist.
Welltech's raw data suggests that over 869K online searches had been made between 2024 and 2025 for topics like: 'Why am I not losing weight despite exercising and eating well?'
Comparing the data across the 50 most populous cities in the UK, they assessed active population and search volume around frustration with exercise progress.
Separately, Welltech compared UK population data with annual search volume for stress management terms. This was designed to show search interest compared to the number of active people per area.
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Of the 50, 12 cities were excluded from the results. From this, Welltech published an article to say that while experts don't claim stress is the absolute cause, it is a key contributor, and we're looking down the barrel of over 400K searches for stress management in the past year alone.
Sautter explains that consistently high levels of stress elevate cortisol, one of the primary fight-or-flight hormones. Over time, this can disrupt the ability to sleep (read: Struggling to sleep after exercise? Experts recommend doing these two things), hinder muscle repair and contribute to performance plateaus and injuries.
'Training isn't just about muscles,' adds Sautter. 'It's about your nervous system. Pushing through a high-intensity workout when you're emotionally drained can backfire. More importantly, if you keep forcing yourself to perform workouts you don't enjoy, then you're setting yourself up to mentally associate exercise with feeling terrible.'
We also know that the stress hormone cortisol can contribute to fat storage, particularly around the stomach, known as "cortisol belly." In turn, this may be associated with metabolic problems long-term, including insulin resistance. When you are stressed, you may also be more likely to eat badly, sleep less, or avoid workouts altogether.
One literature review found that the majority of studies it assessed showed stress can impair physical activity efforts. It concluded that "habitually active" individuals exercise more during stressful periods, whereas those in the beginning stages exercise less. As a result, stress could impact taking up exercise, maintaining a routine, or relapsing.
Remember, exercise is brilliant for supporting your physical and mental health...
According to Sautter, low-intensity exercise can be beneficial when stress levels are high, helping to activate the parasympathetic nervous system.
He recommends zone 2 cardio, yoga, swimming, Pilates, or cycling, along with breathing exercises, which are great for shifting the body away from fight-or-flight into rest-and-repair. I personally recommend these 3 breathing exercises for beginners to help you get started.
Remember, exercise is brilliant for supporting your physical and mental health, and when you find a workout routine that works for you, it can help bust stress and boost mood. Physical activity releases endorphins and helps manage cortisol levels, which, in turn, can improve sleep hygiene.
Sautter says that adjusting your routine to how you're feeling or your 'cortisol rhythm' is actually a good thing, rather than just pushing through. 'More training isn't the answer,' he says. 'Smarter training with a focus on healing your nervous system is.'
To help combat this, Welltech created a sweat-stress ratio, a tool that helps assess your current workouts and stress levels and adjust your routine accordingly based on nine personality types.
The ratio looks at stress levels (low, moderate and high) and exercise frequency. For each profile, sports medicine doctor Tetiana Terschenko offers her advice on tailoring your routine.
Removing stress completely from the picture isn't feasible, but you can strike a better balance. If you get that balance right, exercise is fantastic for managing stress long-term.
Welltech recommends adjusting your workout intensity and slowing down if you think you might need to. During high-stress events, low-intensity movement can help. Shifting workouts to earlier in the day can also help energy levels and improve sleep latency (how quickly you fall asleep at night).
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