Soaking in warm water has long been recognised as a simple way to relax the body. But behind its popularity, there is a fair amount of information circulating without a solid basis.
Some misconceptions have been accepted as “common knowledge” even though they are actually wrong, while genuinely important facts are rarely discussed.
Understanding which claims are myths and which are facts is not just a matter of knowledge. It directly affects how you approach your soaking sessions so the results are truly effective and safe for the body.
This article examines some of the most common myths about warm water soaking, along with their factual explanations. Read through to the end so you can enjoy the experience with greater confidence and peace of mind.
The information in this article is intended for general educational purposes and does not replace professional medical advice. If you have specific health concerns, please consult with your doctor.
Also Read: Benefits of Soaking in Warm Water for Better and More Restful Sleep
Myths About Warm Water Soaking That Are Still Widely Believed
Not every popular belief about warm water soaking is supported by strong evidence. Here are some of the myths that come up most often, along with the facts you should know:
1. Myth: Soaking in Warm Water Detoxifies the Body
This is perhaps the most frequently heard claim. Many people believe that the sweat produced during a warm soak flushes “toxins” out of the body.
The fact is, the organs responsible for processing and eliminating metabolic waste are the liver and kidneys, not the sweat glands. Sweat produced during soaking primarily serves to regulate body temperature, not to expel toxins.
Does soaking in warm water still have benefits? Absolutely. Warm water improves blood circulation, which supports those organs in functioning more efficiently.
However, describing warm water soaking as “detox” in the literal sense is not accurate.
2. Myth: The Longer You Soak, the Better
Intuitively, this claim seems to make sense: if 15 minutes feels good, 45 minutes must be even better.
In reality, soaking for too long can actually produce unwanted effects. A body exposed to high-temperature water for an extended period may experience an elevated heart rate, an excessive drop in blood pressure, or even dizziness upon standing.
The generally recommended duration is 10 to 20 minutes per session, particularly for water above 38°C. After that, give your body time to return to its normal state before soaking again.
This approach is also consistent with hydrotherapy research findings, which indicate that optimal relaxation effects are actually achieved through shorter, regular sessions rather than one prolonged soak.
3. Myth: Warm Water Makes Your Skin Dry
The belief that warm water dries out the skin is not entirely wrong, but it is not entirely right either.
Warm water can strip away the skin’s natural oils if the temperature is too high or the soaking time is excessive. However, at a reasonable temperature (around 33°C to 40°C) and an appropriate duration, the skin does not dry out as a direct result.
The key lies in what you do afterwards. Applying moisturiser to skin that is still slightly damp can help lock in hydration. In addition, staying well-hydrated by drinking water before and after soaking also plays an important role.
4. Myth: Pregnant Women Should Never Soak at All
This perception has unfortunately become quite widespread, and caution regarding expectant mothers is certainly important.
However, the blanket statement that pregnant women “should never” soak in warm water needs clarification.
What should be avoided is soaking in very hot water (above 40°C) for extended periods, as an excessive rise in core body temperature can pose risks to the foetus.
Soaking in water at a lower temperature for a short duration is generally not considered problematic, but this is highly dependent on individual circumstances.
Consulting with a doctor or midwife before deciding to soak during pregnancy is the most prudent step. This applies regardless of what temperature or duration you are considering.
5. Myth: Weight Loss After Soaking Means Fat Was Burned
If the scale shows a slightly lower number after a soaking session, that drop is not from fat loss.
The weight reduction is almost entirely due to fluid lost through sweating. Once you drink water and the body rehydrates, the number on the scale returns to where it was before.
Warm water soaking can slightly increase metabolism, but the effect is not significant enough to serve as a weight loss method.
Facts About Warm Water Soaking That Are Rarely Discussed
Behind the myths above, there are some facts about warm water soaking that deserve more attention:
- First, the relaxation effect from soaking in warm water at temperatures between 33°C and 40°C can persist for several hours after the session. This includes reduced muscle tension and activation of the parasympathetic nervous system.
- Second, the more regularly a person soaks, the more responsive the body becomes to the effects of thermal relaxation, leading to more consistent results over time.
Both of these facts show that the benefits of warm water soaking are most evident when done properly: at the right temperature, for a reasonable duration, and on a regular basis.
Also Read: Benefits of Warm Water for Relieving Muscle Tension
Enjoy a Safe and Calming Soak at Onsei
Now that the myths and facts are clearer, it is time to experience the benefits of warm water soaking in a setting designed for your comfort and safety.
At Onsei, the Signature Onsen Bath uses a handcrafted teak wood tub in a private room, allowing you to enjoy your session without any disturbance.
The Onsei Bamboo Ritual combines the Bamboo Shiatsu Massage with the Signature Onsen Bath in a single 120-minute sequence. The combination of firm bamboo pressure on tense muscles, followed by soaking in the warmth of the onsen, delivers a thorough recovery for the body.
Book your visit to Onsei in Tebet, Bintaro, or Gading Serpong here
