While many people feel energized by a cold plunge, it makes sense that you might feel tired after one. Your body has to work hard to handle the stress of being submerged in very cold water, and it puts a lot of energy into conserving your body heat.
Plunging the body into cold water triggers a sudden, rapid increase in breathing, heart rate and blood pressure known as the cold shock response. That can cause a person to drown within seconds if they involuntarily gasp while their head is submerged. The shock also places stress on the heart and makes it work harder.
It is a normal part of the body's response to fighting an infection. Usually the fatigue goes away quickly once the body has dealt with the infection. Post-viral fatigue is when the fatigue that started with a viral infection continues for a longer period of time after the infection has gone.
The recommended duration and temperature of each therapy will depend on the individual and their goals, but it is typically recommended to participate in cold plunge therapy two to three times a week for one to five minutes , and sauna therapy for 15 to 30 minutes.
While cold plunging has numerous benefits, staying submerged for too long can introduce potential risks. Prolonged exposure to colder temperatures may lead to hypothermia, where the body loses heat faster than it can produce, resulting in symptoms like shivering, confusion, and fatigue.
Take a Short Plunge
You may be glad to know you don't need to take a long ice bath to feel the benefits to your sleep pattern. In fact, exposing your body to cold water for just a couple of minutes should be enough to decrease your body temperature enough to enhance your sleep.
After a cold plunge, dry off and warm up by getting dressed in dry clothes. You can sip a warm beverage and move to a heated area. But don't head straight for a sauna or hot tub, because the extreme heat could cause too much stress on your body.
Taking a cold plunge in an Ice Barrel can activate the brown adipose and muscles in your body. Once activated, irisin and FGF will be released (irisin and FGF are cold-induced endocrine activators of brown fat function in humans). These two hormones burn up the white fat tissues resulting in weight loss.
Cold water immersion can significantly lower cortisol levels, a hormone that inhibits testosterone production when elevated. By reducing cortisol, cold plunge therapy may create an environment more favorable for testosterone production.
A good strategy: Reserve cold plunges for cardio or rest days—and if you want to plunge on the same day as a resistance training session, experts like Andrew Huberman, PhD, recommend doing it beforehand or waiting at least four hours post-exercise so you don't blunt your gains.
Symptoms such as congestion and fatigue typically peak 2–3 days after infection and gradually get better after 7–10 days. Being able to recognize the stage of the cold can also help people know how best to treat the symptoms during each stage, and how long to expect a cold to last for.
Sudden Crashing Fatigue in females is the rapid onset of intense exhaustion and lethargy. It's a normal biological process that can include muscle weakness, hot flashes, and mood swings. In many instances, it's linked to variations in estrogen levels that occur during menopause and perimenopause.
With longer days, colder temperatures and little sun exposure, it's natural to crave more time in bed. You may feel tired, groggy and sluggish all day long.
Cold plunges or ice baths initiate a range of physiological responses that can aid in detoxification: Boosting Lymphatic Circulation: Cold exposure causes the lymph vessels to contract, which in turn helps move lymphatic fluid throughout the body.
Avoid immediate hot showers after a cold plunge to prevent negating the benefits of the cold exposure. If you opt for a shower, gradually increase the temperature. Practice safety and mindfulness throughout your cold plunge and warming routine. Be aware of your body's signals and adjust accordingly.
Our findings showed that participants felt more active, alert, attentive, proud, and inspired and less distressed and nervous after having a cold-water bath. The changes in positive emotions were associated with the coupling between brain areas involved in attention control, emotion, and self-regulation.
Sleeping naked can increase the production of testosterone. The male hormone testosterone is secreted during the night. If a male wears tight underwear, this can increase the body temperature, and there will be a disruption in the production of testosterone. This can also affect the quality of sleep.
Boosts Metabolism and Weight Loss
Regular cold showers stimulate the production of brown fat, a type of fat that generates heat by burning calories. Over time, this can aid in weight management and potentially support weight loss efforts when combined with a balanced diet and exercise.
In fact, prolonged exposure to cold could damage sperm production. Dr Ramsay says: “Cool is good, but cold could be bad and if you are the type of man who gets competitive in the plunge pool or ice bath and stays in for prolonged periods you might be reducing your sperm levels.
Dipping yourself in an ice bath for 30 days triggers considerable physiological adaptations such as reduced muscle soreness, improved circulation, and potentially heightened immune function. You may also notice an unexpected boost in mental resilience and mood regulation.
Research has confirmed that being outdoors in the cold can transform white fat into calorie-burning brown fat. If you're unfamiliar with these terms, white fat is the loose and “jiggly” fat that tends to settle in places like the belly, buttocks and thighs.
The intense cold has an immediate tightening effect on the skin because the blood vessels contract and the pores tighten. As the skin returns to normal temperature, the blood vessels dilate which increases the flow of oxygenated blood to the face, giving it a natural glow.
Plunging into cold water (50ºF to 60ºF) can potentially cause cold shock — a series of responses that include sudden and quick increases in your heart rate, blood pressure, and breathing. During cold shock, you might involuntarily gasp for air while underwater, and you can drown in just seconds.
Dry off with a towel and dress in warm layers (like our poncho). Have a warm drink (such as coffee, soup or tea) or eat something. Foods that are rich in healthy fats, protein and iron (such as eggs) can help you warm up.
Essentially, when you expose yourself to colder temperatures, your body will naturally constrict your blood vessels in order to keep your internal organs warm. This is why you may find your fingers and toes get numb after longer cold plunges.