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The Training Session That Made Me Quit Weed: An Athlete’s Story

Young male athlete sitting on a track looking exhausted after a training session

It was a Tuesday in October, on a circuit I’d trained every week for two years. I knew what my legs should feel like at the halfway point and what my lungs should do in the final push. That day, everything was off by about thirty percent. I wasn’t injured, just absent, and some part of me already knew why.

Hands on My Knees in the Parking Lot

I finished the session. Barely. Stood with my hands on my knees in the parking lot and tried to figure out what was wrong.

I’d slept eight hours. I’d eaten well. There was no reason for it. Except there was, and I think some part of me already knew it.

Three Years of Winding Down

I’d been using cannabis pretty much every evening for about three years by that point. It started as a wind-down thing. Training hard, sleep was patchy, it helped. That’s the honest version.

And for a while it did help, or I thought it did. I was still hitting my times, still progressing. So it felt harmless.

But that session in October, something landed differently. I wasn’t just tired. My reactions felt slow. My motivation to push through discomfort, the thing that actually makes you an athlete, was just not there.

Like the signal existed but the volume was turned down. I’ve heard people describe depression as being behind glass. That’s what it felt like physically. I was present but buffered.

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Everything Except the Obvious Thing

I drove home and sat with it. I didn’t immediately connect it to the weed. I thought maybe I was overtraining, or that my diet was off, or that I was coming down with something. I ran through a mental list of everything except the obvious thing.

The obvious thing took another week to admit. I did some reading. Found information about how cannabis affects sleep architecture, specifically REM and deep sleep cycles.

I’d assumed I was sleeping better because I was falling asleep faster. Turns out those aren’t the same thing. The recovery my body actually needed wasn’t happening. I was getting the sensation of rest without the substance of it.

That was the part that bothered me most. I’d been managing something I thought was helping, and the whole time it was eating into the one thing I cared about.

If you’re serious about performance, you track everything: calories, sleep, load, intensity. I’d tracked all of it down to the detail and completely blind to the one variable that was quietly dragging everything else down.

The Last Sunday

I stopped the following Sunday. Not dramatic. I just decided that was the last time.

The first two weeks were uncomfortable. Sleep got worse before it got better, which is its own kind of irony. I had vivid dreams, some nights I barely slept.

I knew from what I’d read that this was normal, part of the withdrawal timeline. But knowing it didn’t make it easier at two in the morning when I was wide awake and wired.

Week three, something shifted. I woke up on a Wednesday and felt actually rested. Not the flat, functional rested I’d gotten used to. Rested in a way where I wanted to get up. That sounds small. It wasn’t.

Running the Circuit Again

The training improvement wasn’t instant or linear. Some sessions were still rough. But about six weeks out, I ran the same circuit I’d failed in October.

Not just completed it. I negative split the back half. That’s when I knew it wasn’t fitness I’d been losing. It was ceiling. The ceiling on what I could actually do.

My weeks after the last joint

  1. Release: day 1 to about day 5Sleep got worse, not better. Vivid dreams, some nights barely any sleep, wide awake and wired at two in the morning.
  2. Resilience: day 5 to about week 3 or 4The rest of two uncomfortable weeks. Then in week three, a Wednesday morning where I woke up actually rested.
  3. Clarity: until about week 7Training still up and down, some sessions rough. About six weeks out, the October circuit again, with a negative split on the back half.
  4. After thatNo use since. Better times, faster recovery and the drive to push through discomfort back.

The Lie Got Too Expensive

I’m not evangelical about it. I don’t think everyone who uses cannabis is hurting themselves.

But I was an athlete telling myself it wasn’t affecting my performance, and that was a lie I was telling myself because the alternative was inconvenient. The session in October just made the lie too expensive to keep.

I haven’t used since. My times are better. My recovery is faster. My drive to push through discomfort is back, which I hadn’t even realized I’d lost until I had it again.

Some things you only understand in retrospect, when the noise clears enough to hear what was actually happening.

If you train hard and suspect weed is capping your recovery too, our Cannabis Detox Program takes you through the first weeks, including the rough nights before sleep gets better.

Frequently Asked Questions

Does weed affect athletic performance?

The research doesn't show any benefit. A systematic review of 15 studies found that THC didn't improve aerobic performance in any of them, and strength was probably reduced. A later review in Sports Medicine found the same picture: either no effect or a negative one, although large, rigorous studies in athletes are still missing.

Does weed help you recover by improving sleep?

Not really. THC can help you fall asleep faster, but reviews suggest it may hurt sleep quality with long-term use. In a sleep lab study, heavy users who had just stopped got less total sleep and less deep sleep than people who didn't use cannabis. Falling asleep fast and sleeping well are not the same thing.

Why is sleep worse after quitting weed?

Sleep problems are one of the most common withdrawal symptoms. In a study that measured heavy users in a sleep lab over their first 13 nights without cannabis, total sleep time and sleep efficiency got worse, and waking up during the night increased. Many people also report strange or vivid dreams. For most daily users, sleep gets close to normal around weeks 3 to 4.

Does exercise help with weed withdrawal?

The evidence is thin so far. In a 2026 trial, 46 adults in inpatient withdrawal did either 35 minutes of cycling or light stretching every day for a week. Withdrawal went down in both groups, with no clear difference between them. Exercise is still good for your sleep and mood, but it's no shortcut through withdrawal.

How long after quitting weed does performance improve?

There is no study that gives athletes a fixed number. What we know: sleep, which is where much of your recovery happens, usually settles around weeks 3 to 4 for daily users. Many people notice the biggest change in energy and drive during the Clarity phase, up to about week 7.

Ben C., Copywriter at quit-smoking-weed.com

About the author

Ben C. · Copywriter, QSW Team

Ben smoked weed for six years and became addicted while working at a withdrawal clinic, where he eventually went through his own withdrawal. He has been writing for quit-smoking-weed.com ever since, combining professional insight with personal experience.

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