“Cardio kills your gains”
Verdict: Doesn’t hold up
Adding cardio to lifting does not reduce muscle growth or maximal strength on average, though same-session cardio can blunt explosive power.
Claim check
Do cold plunges after lifting speed up your gains?
Ice baths can make you feel less sore, but meta-analyses suggest that using them right after strength training slightly reduces muscle and strength gains.
“Cold plunges after lifting speed up your gains.”
Our verdict: Doesn’t hold up
Verdict: Doesn’t hold up
Cold plunges can ease soreness, but taken right after lifting they tend to slightly blunt gains in muscle size and strength.
- Checked
- Oct 2026
- Sources
- 5
- Newest
- 2026
The key numbers
What the evidence says, in six sentences
Our own summary of the sources listed at the bottom of this page.
- The claim gets recovery partly right, because a 2026 umbrella review of 15 meta-analyses found cold-water immersion reduced muscle soreness for up to 96 hours after exercise.
- It gets gains backward, since the same review concluded that regular cold plunges after lifting impaired, rather than improved, gains in muscle strength and size.
- A 2024 meta-analysis of 8 studies estimated a muscle growth difference of -0.22 against cold plunges, and a 2023 analysis put the strength difference at -0.23, with an interval from -0.45 to -0.01.
- This matters most for people training for size or strength, while athletes who must recover quickly between games or events may still find occasional cold plunges useful.
- If you like cold plunges, avoid them right after strength sessions when muscle growth is your goal, and check with a clinician first if you have heart disease or a heart rhythm problem.
- The evidence is thin, with small studies of mostly men, low to very low certainty ratings, and one analysis finding no clear strength penalty when the whole body was immersed.
The numbers, drawn
Every chart is drawn from the published estimates. Bars and intervals show the uncertainty; a dashed line marks no difference.
- Muscle growth (2024 meta-analysis)8 studies; 95% credible interval from a Bayesian model−0.22 (−0.47 to 0.04)
- Strength, all studies (2023 meta-analysis)10 studies, 170 people, 92% men−0.23 (−0.45 to −0.01)
- Strength, only the trained limbs cooledSubgroup of the 2023 meta-analysis−0.31 (−0.61 to −0.01)
- Strength, whole body immersedSubgroup; not significant−0.08 (−0.53 to 0.38)
- Strength measures (2021 meta-analysis)Pooled 1RM, isometric, and strength endurance outcomes−0.60 (−0.87 to −0.33)
Pooled differences with 95% intervals from three meta-analyses (Piñero 2024, Grgic 2023, and Malta 2021) comparing lifting with and without a cold plunge afterward. Nearly every estimate points toward smaller gains.
Sources: 1European Journal of Sport Science, 2024 2European Journal of Sport Science, 2023 3Sports Medicine, 2021
- Lifting alone0.36
- Lifting plus cold plunge0.14
Within-group growth was about 0.36 with lifting alone but only 0.14 when a cold plunge followed training. Source: Piñero 2024, European Journal of Sport Science.
The claim
- Ice baths speed muscle growth
- Less soreness means faster gains
- Use one after every lifting session
The evidence
- Muscle and strength gains were slightly smaller
- Soreness fell, but adaptation did not improve
- Reviewers suggest using cold water selectively
A side-by-side summary of the cold plunge claim and pooled study results. Sources: Piñero 2024 and the 2026 umbrella review by Berjisian and colleagues.
What to do with this
- Skip the cold plunge right after lifting if building muscle or strength is your main goal.
- Save cold water for times when quick recovery matters more, such as between competitions.
- Ask a clinician before cold plunging if you have heart disease or a heart rhythm problem.
Key terms
- Cold-water immersion
- Sitting in cold water after exercise; reviews suggest about 10 to 15 minutes at 5 to 15 degrees Celsius for recovery.
- Umbrella review
- A review that pulls together the findings of several earlier meta-analyses.
- Credible interval
- A Bayesian version of a confidence interval showing the likely range of the true effect.
- Cold shock response
- The sudden gasp, fast breathing, and heart rate jump that happen when the body hits cold water.
What we read 5
- 1Throwing cold water on muscle growth: A systematic review with meta-analysis of the effects of postexercise cold water immersion on resistance training-induced hypertrophyEuropean Journal of Sport Science, 2024
- 2Effects of post-exercise cold-water immersion on resistance training-induced gains in muscular strength: a meta-analysisEuropean Journal of Sport Science, 2023
- 3The Effects of Regular Cold-Water Immersion Use on Training-Induced Changes in Strength and Endurance Performance: A Systematic Review with Meta-AnalysisSports Medicine, 2021
- 4Strategic Application of Post-exercise Cold-Water Immersion to Enhance Performance Recovery and Adaptation: An Umbrella Review of 15 Published Systematic Reviews with Meta-analysisSports Medicine - Open, 2026
- 5Beyond hypothermia: mechanisms of death, rescue, and prevention in cold water immersionJournal of Applied Physiology, 2026
Written and drawn by go4 with AI assistance (Claude, by Anthropic) after reading these sources, and checked against them. No text or figures were copied. Checked Oct 2026.
Keep checking
All claims“Creatine is just water weight, and it hurts your kidneys”
Verdict: Doesn’t hold up
Creatine holds a little water at first, but with lifting it adds real lean mass, and trials show no kidney harm in healthy people.