Woman sitting in a cold plunge in a desert backyard.

Cold Plunges: The Hype, the Help, and the “Wait… Why Does My Head Feel Like That?”

I love a wellness trend as much as the next woman who’s trying to keep her nervous system calm while also answering 47 questions before lunch.

Cold plunging has been one of those things I kept hearing about everywhere. More energy! Better mood! Faster recovery! Stronger mindset! And yes, some of that can be true.

But cold plunges are also not “one size fits all,” (as I found out via personal experience) and they’re definitely not something to muscle through if your body is sending clear red flags.

So let’s talk about cold plunging in a way that’s actually useful: benefits, safety, temperatures, when to skip it, sauna pairing (and why it’s not always a good idea), and the very real headache thing (because… same).

And yes, we’re also going to talk about what you wear after, because if you’ve ever stepped out of cold water and instantly turned into a shivering newborn deer, you know that part matters too.

And if this isn't obvious based on me owning a resortwear brand, I am not a doctor. This isn't advice. This is just what I've learned through my own dabbling in cold water plunging. Ask your doctor before you do anything if you have any doubts.

1) Benefits of cold plunging

Cold plunging (cold water immersion) is basically the practice of submerging your body in cold water for a short period. The “why” behind it usually lands in a few buckets:

Recovery and soreness

Cold water immersion has been studied for post-exercise recovery and soreness, and some sources note it may help reduce soreness after workouts for some people. This is one of the reasons I got curious about it, as recovery takes longer and soreness last longer as I'm...."growing up".

Mood, stress resilience, and a mental “reset”

Some research and clinical commentary I read suggest cold water exposure may affect stress hormones and neurotransmitters (like norepinephrine), which may play a role in mood and alertness. (Also of interest to me..)

Sleep and wellbeing (with a big asterisk)

A systematic review in 2025 suggested cold-water immersion may have time-dependent effects on things like stress, sleep quality, and quality of life, while also noting the evidence base is still limited. I have heard multiple people swear that they sleep better after cold plunging during the day though. Just sayin'.

The “I did something hard” effect

This one is not a lab measurement, it’s just life. For many people, cold plunging is a quick way to practice discomfort, breathe through it, and come out feeling capable. That sense of agency can matter just as much as any physical benefit, which is pretty amazing. 

2) When not to cold plunge

This is the part that needs to be loud.

Cold water immersion triggers a cold shock response that can cause a rapid rise in breathing rate, heart rate, and blood pressure. That’s why major heart-health orgs caution people with cardiac history to be careful. (Learn more here: www.heart.org)

You should skip cold plunging (or get medical clearance first) if you have:

  • heart disease, a history of heart attack/stroke, or known heart rhythm issues 

  • uncontrolled high blood pressure 

  • Raynaud’s phenomenon or significant circulation issues 

  • a history of fainting, seizures, or conditions made worse by sudden cold stress 

  • pregnancy, or other medical conditions where your provider advises against it (worth a quick check-in)

Also: if you’re doing this in open water (lake/ocean), cold shock + panic breathing can become dangerous fast, so don't jump into deep water and expect to be fine.

Bottom line: cold plunging is optional. It is not a moral achievement.

3) How long has cold plunging been around as a treatment option?

Cold water as therapy is not new at all. Versions of hydrotherapy have shown up throughout history, including as early as ancient Greek and Roman bathing culture.

So while cold plunges feel trendy right now (because they’re on every wellness influencer’s feed), the idea of using water temperature for health and recovery has been around for a very long time.

4) What is a typical (and safe) temperature?

If you’re new to cold plunging, a lot of reputable guidance points to a beginner range of about 50–59°F. 

Some people go colder, but water below ~50°F can significantly increase risk, especially if you stay in longer than your body can safely handle. 

My best “start smart” suggestion: start less cold than you think you need. The goal is consistency and safety, not suffering.

5) Should you sauna after? What’s the point of hot-cold?

A lot of people love contrast therapy (hot sauna + cold plunge) because it can feel amazing: heat relaxes you, cold invigorates you, and going back and forth can feel like a full-body reset.

Sauna bathing alone has been associated with cardiovascular benefits in observational research, and it can be deeply relaxing. 

But switching between hot and cold also adds stress to the cardiovascular system. The American Lung Association notes that alternating sauna and cold plunges can raise blood pressure or even cause shock for some people, and they recommend talking with your healthcare provider before adding these trends to your routine. 

If you do sauna + cold, keep it conservative

  • Don’t do extreme temperatures on either end (especially as a beginner).
  • Keep rounds short.
  • Hydrate.
  • Pay attention to dizziness, chest discomfort, nausea, or feeling faint. If that happens: stop.

This is one of those “more isn’t better” situations.

6) Why do people cold plunge?

Because it hits multiple needs at once:

  • Body: recovery, inflammation/soreness support (for some) 
  • Brain: a quick mood shift and alertness boost 
  • Nervous system: practicing calm breathing under stress
  • Identity: proving to yourself that you can do hard things (without spiraling)

Sometimes people start for physical recovery and stay for the mental clarity. Sometimes it’s the opposite. Everyone's different!

7) The back-of-the-head headache thing (yes, I get it too)

Okay. Let’s get personal.

When I cold plunge, I sometimes get a crippling headache in the back of my head. Not a little “brrr” discomfort. More like: my body is filing an official complaint.

If you’ve had this happen, you’re not alone. Cold exposure can trigger headache in some people, and one proposed mechanism involves rapid changes in blood vessel behavior (vasoconstriction and blood flow changes) when your body is suddenly exposed to cold. 

Also, cold water can spike blood pressure during the cold shock response, which may contribute to head/neck pressure for some individuals. 

Why it’s not a “push through it” situation

A severe, sudden headache is your body saying: this is not regulated stress for me. This is too much.

Pain is not a badge of honor. And when headaches are intense, repeating, or located in a specific area (like the base of the skull), it’s a sign to take it seriously and adjust.

What to do if it happens

  • Get out immediately. Do not “finish the minute.”
  • Warm up gradually (towel, warm clothes, slow breathing). (I've also been told to hop in a hot tub and get the back of my head into the warm water...so ask a lot of questions if you're nervous about this and see what works best for you.)
  • Hydrate.
  • Skip head/neck submersion into the cold water next time (many people do better keeping the head out).
  • Go warmer (try 55–59°F instead of colder). 
  • Shorten the exposure (30–60 seconds can be plenty).
  • If it keeps happening, stop and talk to a clinician, especially if you have high blood pressure, migraine history, neurological symptoms, vision changes, or the “worst headache of your life” feeling.

I’ll say it plainly: if cold plunging reliably gives you a crushing headache, your body is not being dramatic. It’s being smart. Listen to it and find something else to help you.

8) When to stop cold plunging

Stop immediately if you experience:

  • chest pain, tightness, or shortness of breath beyond the initial gasp response
  • dizziness, faintness, confusion
  • uncontrollable shivering, numbness, or loss of coordination
  • severe headache (especially sudden onset)
  • panic that you cannot regulate with breathing

And if you ever feel like you might pass out, you’re done for the day.

Again: cold shock is real. 

9) How often to cold plunge?

There isn’t one universal prescription here because goals vary (recovery vs mood vs resilience), and research is still evolving. One Harvard article I read noted that evidence for many claims about cold plunging are still thin and it cautioned against overconfidence in the trend. 

That said, a safe and realistic approach many clinicians suggest is:

  • Start with 2–3 sessions per week
  • Keep it short
  • Build gradually based on how your body responds

And if you’re pairing it with training: be aware that some research suggests cold water immersion right after strength training may blunt certain muscle adaptation signals (depending on timing and goals). 

So if your main goal is building strength or muscle, you might separate plunges from lifting sessions.

10) The after-part matters: what you wear after a plunge

Here’s what nobody tells you when they’re busy filming their plunge for Instagram:

The plunge is 2 minutes.
The after is the make-or-break.

You want something that:

  • warms you quickly
  • feels cozy on sensitive, cold skin
  • doesn’t cling in a weird way
  • can handle water droplets still hanging on your legs and arms

This is exactly why our Cabana terry cloth loungewear is such a perfect post-plunge layer. Terry cloth is absorbent and soft, which means it helps soak up leftover water while you warm up.

My favorites after cold plunging:

They're the kind of outfits that makes you feel like, “Okay. I did the hard thing. Now I get to be comfortable.” Which is honestly the whole point, right?

A simple “start here” cold plunge plan

If you’re new, try this for your first week:

  • Temp: 55–59°F (Cleveland Clinic)
  • Time: 30–60 seconds
  • Frequency: 2x that week
  • Rule: head stays out, breathe slow, get out while you still feel in control

Then reassess. Your body will tell you what it thinks.

Resources to learn more (grounded, not hype-y)

Question for you

Are you a “love it instantly” cold plunger… or a “my soul left my body” cold plunger?

And if you’ve had the headache thing too, I really want to know: did anything help (warmer temp, shorter time, keeping your head out)?

(And if you’re stepping out of the plunge and need a warm, absorbent layer immediately… you already know where I’m going with that: Cabana terry cloth, baby.)

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