Healing benefits of Onsen : Discover Shima Onsen

Refresh your body and mind in a Japanese onsen

Hot springs, or "onsen" as they are called in Japan, are more than just a relaxing retreat. The mineral-rich, warm waters of onsen are known for their numerous health benefits.

From improving circulation to alleviating muscle and joint pain, these natural waters offer a therapeutic escape from the stresses of daily life.

 

But first of all, let's start with the basics!

What are Hot Springs called in Japan?

In Japan, hot springs are known as "onsen." This term refers not only to the natural hot springs themselves but also to the bathing facilities that have developed around them. Onsens are an integral part of Japanese culture and are cherished for their relaxing and healing properties.

What is the most famous Hot Spring in Japan?

One of the most famous hot springs in Japan is Beppu Onsen, located in Oita Prefecture on the island of Kyushu. Beppu is renowned for its variety of hot springs and unique experiences, including the famous "Hells of Beppu," which are a series of vividly colored and striking hot spring pools.

Are Hot Springs Good for Your Health?

Yes, hot springs are considered highly beneficial for health. The warm, mineral-rich waters of onsen can help improve circulation, alleviate muscle and joint pain, and promote relaxation. Here are some of the key benefits of Japanese hot springs:

  • Improved circulation : The heat from the onsen water helps to increase blood flow, which can enhance overall cardiovascular health.
  • Skin health : The minerals found in onsen water can help treat various skin conditions and improve the overall quality of the skin, leaving it smooth and rejuvenated.
  • Muscle and joint relief : The warm water of the onsen is known to relax muscles and soothe joint pain, making it an ideal remedy for those suffering from chronic pain or stiffness.
  • Stress relief : The serene environment of an onsen, combined with the soothing warm water, helps reduce stress levels and promote deep relaxation, offering a perfect escape from the hustle and bustle of everyday life.

 

Onsen in Oriental Medicine: The power of wellness and preventive care

Onsen are not designed to "treat" specific diseases, but rather to improve overall health and prevent diseases. The revised therapeutic indications now include conditions such as "functional disorders due to autonomic nervous system instability" and "stress-related disorders (insomnia, depression, etc.)." In other words, it is recognized that onsen can have beneficial effects on mental disorders. Bathing in onsen can offer relaxing and soothing effects.

The therapeutic power of baths and onsen

Why are onsen effective? One might think it's "of course because they contain beneficial components," but various other factors also interact to produce effects. This is called a "complex synergistic effect."

The healing thermal effects of Onsen

The fact that the heat of the water warms the body is called the "thermal effect." This effect promotes blood circulation, and various other effects can be expected. When the body warms up, blood vessels (especially capillaries) dilate, metabolism increases, and the elimination of bodily waste is facilitated. The promotion of blood circulation through the thermal effect is beneficial for the body. It is said that when body temperature drops by 1°C, immunity decreases by 30%, highlighting the importance of keeping the body warm.

Hot water (over 42°C) stimulates the sympathetic nervous system, leading to a state of alertness and excitement. On the other hand, warm water (37-40°C) stimulates the parasympathetic nervous system, which has a relaxing effect and calms the mind. For the Japanese, a water temperature of 42°C is often perceived as the most pleasant. Hot water that makes you feel refreshed is ideal. However, caution is necessary as fatal bathing accidents often occur in baths with temperatures above 42°C.

The benefits of hydrostatic pressure

The hydrostatic pressure exerted on the body's surface when immersed in water puts the entire body under pressure, stimulating internal organs and making them move, similar to a natural massage. About one-third of the total blood circulation gathers in the legs, and this blood circulation may struggle to return to the heart due to gravity.

However, when immersed in water, hydrostatic pressure narrows the blood vessels and pushes the blood toward the heart (pump effect). As a result, blood circulation and lymphatic circulation are activated, improving the venous flow of the lower limbs and reducing the load on the heart. It is calculated that when one is immersed up to the shoulders, hydrostatic pressure equivalent to more than 500 kg is exerted on the total body surface. This hydrostatic pressure effect helps push blood and lymph fluids, providing a detoxifying effect.

The thermal effect and hydrostatic pressure effect stimulate the cardiac natriuretic hormone (atrial natriuretic peptide), increasing diuresis and facilitating the elimination of bodily waste, which also helps prevent pain.

 

Shima Onsen: A Timeless Hot Spring Retreat for Healing and Relaxation

Nestled in the tranquil mountains of Gunma Prefecture, Shima Onsen is a historic hot spring town that has provided comfort and healing for centuries. Renowned as one of the top three onsens in the Gunma region, along with Kusatsu and Ikaho, Shima Onsen has a rich history dating back to the Kamakura period. Surrounded by breathtaking nature in the Joshinetsu-kogen National Park, this serene onsen offers visitors not just relaxation, but also a sense of renewal.

The Healing Waters of Shima Onsen

 

A Hot Spring Legacy Since 989

Shima Onsen holds a special place in Japanese history as one of the oldest and most revered hot springs in the country. Legend has it that its waters have the power to heal 40,000 illnesses, giving the onsen its name ("Shima" meaning 40,000). The onsen was the first in Japan to receive national recognition as a hot spring health resort and boasts 42 abundant wellsprings. This generous supply of mineral-rich water has attracted visitors for generations, offering comfort and healing to all who come.

Types of Healing Springs

Shima Onsen is known for its various types of healing springs, particularly its Chloride and Sulfate springs, which have unique properties and benefits:

Chloride Springs: The Heat-Retaining Bath

Chloride springs, also known as "netsu no yu" or heat-retaining springs, are perfect for those who need extra warmth. The salt content in these springs prevents sweat from evaporating, helping the body retain heat and providing relief for conditions such as muscle and joint pain, sensitivity to cold, and chronic women’s diseases. After bathing, a layer of salt remains on the skin, enhancing the body's heat retention and giving the skin a smooth, moisturized finish.

Sulfate Springs: Nature's Healing Waters

Sulfate springs are divided into Calcium, Sodium, and Magnesium Sulfate springs, each with its own therapeutic effects. Calcium sulfate springs are particularly effective for high blood pressure, arteriosclerosis, and conditions like rheumatism and eczema. These springs, known as "Healing Springs," are ideal for post-stroke recovery and skin conditions, while drinking the water can aid with chronic pain and neuralgia.

Shima Onsen’s Natural Beauty

 

Seasonal Beauty of the National Park

One of the unique draws of Shima Onsen is its ever-changing natural scenery. Located in the heart of a national park, Shima Onsen offers breathtaking views throughout the year. Visitors can enjoy the vibrant blue waters of Lake Okushima, set against the backdrop of the surrounding mountains. In the spring, the area is adorned with cherry blossoms, while autumn brings a burst of brilliant colors from the foliage.

A Stroll Through Tradition and Nature

After a soothing bath in the hot springs, take a leisurely stroll around the town and the surrounding nature. Shima Onsen is dotted with waterfalls, streams, and scenic hiking paths that invite you to explore the beauty of the region. Whether you're admiring the cherry blossoms or marveling at the autumn leaves, Shima Onsen offers a perfect blend of relaxation and outdoor adventure.

A Rich Onsen Experience for All

Traditional Ryokan and Modern Hotels

Shima Onsen is home to a variety of accommodations that cater to all tastes. From traditional ryokan inns to modern hotels, visitors can choose how they want to experience the onsen. The area’s ryokan provide a deeply immersive cultural experience, with tatami rooms, futon beds, and delicious local cuisine. For those seeking contemporary comforts, there are hotels that blend modern amenities with the timeless charm of the onsen town.

Drinking the Healing Waters

In addition to bathing, Shima Onsen’s mineral-rich water is also suitable for drinking, offering further health benefits. The springs' water aids digestion, promotes gastrointestinal activity, and can help alleviate chronic constipation. However, visitors with conditions like high blood pressure or kidney disease should consult a doctor before consuming the water.

Shima Onsen is a true sanctuary for both the body and soul, offering a perfect retreat into Japan’s traditional onsen culture. With its healing waters, picturesque surroundings, and charming atmosphere, it remains a must-visit destination for anyone seeking relaxation and rejuvenation.

 

Japanese Bathroom Accessories for Onsen Experience

Enhance your at-home onsen experience with these exquisite Japanese bathroom accessories. These items will elevate your bath time, bringing a touch of Japanese tradition and luxury to your home.

1.Japanese Bath Stool: Premium Hinoki Bath Accessories

Discover our meticulously crafted wooden shower stool, a pinnacle of Japanese bath accessories. Experience the natural benefits of Hinoki cypress wood: antibacterial properties, calming scent, and sustainability. Elevate your bathroom experience with this exquisite Japanese bath chair. View Product

 

2.Handmade Hiba Cypress Onsen Bath Bucket - Eco-Friendly

Explore our Handmade Hiba Cypress Onsen Bath Bucket, perfect for a luxurious Japanese-style bathroom. Made from eco-friendly, sustainably-sourced Hiba wood, it offers antibacterial and deodorizing properties. Elevate your bath experience with this durable, aromatic, and eco-conscious accessory. View Product

 A bath wooden bucket with  two copper ring around it a white towel on the edge and it is placed on a granit rock with the sea on background

  1. Hinoki Aroma Shower Soap: Luxurious & Relaxing Bath

Experience the calming essence of Japanese Hinoki with our handcrafted soap bar. Infused with pure Hinoki essential oil, it promotes relaxation, nourishes your skin, and leaves you feeling revitalized. View Product

 A bar of Hinoki Forest Shower Soap accompanied by its packaging. The soap bar is white and rectangular with rounded edges, while the packaging is a silver foil pouch labeled 'Forest Shower Soap' with details about its natural and aromatic properties. The product is made in Kohchi, Japan.

 

4.Wooden Foot Soaking Basin | Foot Bath Tub | Japan Spa Equipment

Experience spa-like relaxation with our foot soaking tub crafted from natural Sawara wood. Dive into the authenticity of a Japanese bath tub and the convenience of a foot bath sink. Prioritize eco-friendly body care and sustainability with every soak. View Product

 side view of a woman soaking her feet in a wood soaking bath placed on a grey carpet in a room

  1. Hinoki Wood Bath Bucket: Essence of Japanese Bathroom Accessories

Experience unparalleled Japanese craftsmanship with our Hinoki bath bucket. A pinnacle in wooden bathroom accessories, it promises durability, hygiene, and sustainability. Dive into a luxurious bathing ritual that celebrates tradition, nature, and modern luxury. Explore the world of hinoki bathroom accessories with us. View Product

 A φ22cm / 8.66" handy bath bucket made of Sawara Japanese cypress sits on a white tiled surface with green ferns around, showcasing the bucket's smooth grain and copper bands.

In conclusion, Japanese hot springs, or onsen, offer a unique and deeply enriching experience that goes beyond mere relaxation. With their rich mineral content and therapeutic properties, these natural wonders provide numerous health benefits, including improved circulation, skin health, and relief from muscle and joint pain. Onsen culture is deeply embedded in Japanese society, symbolizing a harmonious blend of physical, mental, and spiritual wellness. Whether you are visiting a famous onsen like Beppu or exploring hidden gems such as Hyakkannon in Saitama, the rejuvenating effects of these hot springs are undeniable. Embracing the onsen experience can lead to a healthier and more balanced life, making it an essential part of any visit to Japan.

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