Crossing the finish line of a marathon is one of those moments you never forget. The crowds, the adrenaline, the sense of ‘finally, I did it!’ Months of early alarms, long runs and juggling life around training all come together in that final triumphant step.
But once the medal’s on your neck and the buzz starts to fade…reality hits. Your legs are tired, your energy’s gone and you’re suddenly aware that the stairs are your mortal enemy. The first 72 hours after a marathon are absolutely crucial – and what you do next can make a huge difference to how quickly you bounce back.
Here’s how to take care of your body (and your brain) in those all-important first few days.
What’s actually going on in your body after a marathon?
Running 26.2 miles is big. Really big. So, it’s no surprise your body is working overtime afterwards.
DOMS (delayed onset muscle soreness) usually kicks in between 24-48 hours. That heavy, stiff, slightly comedia walk? Completely normal.
Inflammation rises as tissues repair and energy stores rebuild.
Fatigue sets in as your body plays catch-up.
Then there’s the hormonal crash. During the race, adrenaline and cortisol keep you going long after your legs want to quit. Once you stop, those levels drop sharply and that’s when many runners feel unexpectedly emotional. A bit flat? Teary? Wondering why you want a nap and a hug? Totally normal. Your system is recalibrating after a huge physical and mental effort.
Your top recovery strategies
1. Book a massage (ideally within 48 hours)
If you can squeeze one in, a sports massage is one of the best post-marathon treats you can give yourself. It helps:
Improve circulation
Clear out metabolic waste
Reduce tightness
Ease those developing niggles
Speed up healing
Calm your nervous system
Sometimes just hearing a therapist say ‘you’re doing better than you think’ is enough to list your spirits.
2. Gentle stretching and easy walking
The urge to become one with your sofa is strong, we get it. But gentle movement is far more helpful. A few slow stretches and a relaxed walk will:
Keep blood flowing
Reduce stiffness
Encourage muscle recovery
Stop everything from seizing up
Think movement, not workout.
3. Epsom salt baths
A warm bath with Epsom salts is classic for a reason. The magnesium may help ease muscle tension and the heat encourages tight tissues to soften. Bonus points if you add a cup of tea and a podcast.
4. Hydration, nutrition and actual rest
A marathon doesn’t just empty your legs; it drains your whole system.
Focus on:
Hydration: steady sipping rather than downing a litre at once
Nourishing meals: carbs to refuel, protein to repair
Sleep: your most powerful recovery tool
Downtime: your body genuinely needs it
This is not the time to start reorganising the garage or signing up for another race.
5. Don’t forget the mental reset
Finishing a marathon is a huge emotional milestone. When training ends, routines change and that big goal disappears, it’s common to feel a bit lost.
Give yourself:
Space to decompress
Time to reconnect with non-running life
Chats with other runners who ‘get it’
Permission to rest without guilt
Feeling low after such a high doesn’t take anything away from your achievement, it’s just part of the process.
The bottom line
Your marathon might be over but your recovery deserves just as much care and intention as your training did. A mix of rest, gentle movement, good food and supportive treatments like sports massage can help your body heal properly and reduce the chance of post-race niggles turning into injuries.
If you’d like some help easing those tired legs, our Fire & Earth team are ready when you are. Book your post-marathon recovery session and let us help you get back to feeling more like yourself again.
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