From Wednesday, September 8th, Isetan Shinjuku Store, Men's Building 1st floor promotion will be held, featuring items related to the theme "my condition," presented from three different perspectives. One of these perspectives will feature items produced by "Deportare Club," a membership-based personal training gym frequented by top athletes such as professional baseball players and members of the Japanese national soccer team.

Our guests this time are Yuma Takeshita, the representative of Deportare Club, who has also worked as a trainer, helping many celebrities transform their bodies, and Mikie Sasano, the daughter of the owner of "Sauna Shikiji," a sauna sanctuary. These two, who regularly maintain their physical condition by sweating through exercise and saunas, shared with us the importance of "sweating" in creating physical and mental condition, and the feeling of satisfaction it brings.


With lifestyles changing due to staying home and working remotely, opportunities for exercise have decreased. We'll also be getting a detailed look at "Zauna Suit," a high-performance sportswear that allows you to sweat efficiently in a short amount of time.

You are responsible for managing your own physical condition.

Takeshita: In today's world, taking care of your own physical condition is absolutely essential. Athletes understand the importance of physical condition because they can't achieve results without it, but this isn't limited to athletes. Business people, both men and women, can perform better and have better relationships when they are in good physical condition.


Sasano: Everyone gets down in the dumps and feels stressed sometimes. But there's no point in taking it out on other people when that happens, so it's good to know how to make yourself feel better. For some people, that might be exercising, watching a movie, or enjoying some good food. It's important to take care of your own mood.

Takeshita : That's right. In modern society, it's not easy to maintain your physical and mental condition. If you let your guard down even a little, your body and mind will quickly deteriorate. When your condition worsens, not only does your work performance suffer, but it also affects your body, leading to weight gain and illness. To prevent this from happening, it's essential to exercise and get good sleep. The autonomic nervous system is involved in sleep, and moderate exercise helps regulate the autonomic nervous system by causing you to sweat and improve blood flow, making it easier to fall into a deep sleep.

Sweating feels great!

Sasano: I've been going to saunas since I was a child, and I've learned that the feeling of "getting into the zone" in a sauna is also related to the autonomic nervous system. When you go from a hot sauna to a cold bath, the sympathetic nervous system becomes dominant, and during the rest period after the sauna, the parasympathetic nervous system, which allows the body to rest, becomes dominant, leading to relaxation. The refreshing feeling you get from this transition is said to be the true nature of the pleasure of "getting into the zone." By alternating between the sauna and the cold bath, your body feels refreshed and you feel like you've been "reset!"


Takeshita: I also like saunas and go often, and alternating hot and cold baths are a common practice among athletes as a means of recovering from fatigue. Baseball pitchers ice their bodies after pitching, and soccer players do ice baths, where they put their lower bodies in water full of ice. Although the level may be different, saunas can be expected to have similar effects.

When I sweat in the sauna , I feel like everything that's been stagnating is flowing out, and my body is circulating better. It's as if I'm in the sauna just to soothe and cleanse myself in a cold bath. The cold bath after the sauna is truly a reward. And the beer afterwards tastes so good!

In Takeshita Sasano's case, the water in his cold bath is from "Shikiji," which is considered the best in Japan, so I'm envious (laughs). Sauna and cold bath is the ultimate switch, like being left in the savanna and then suddenly thrown into a lake, giving you the feeling of a wonderfully refreshing mental trip. I think it's important to cherish that feeling of "what feels good to you" in order to get in shape.

You can experience "getting into the zone" at home too.

I also got to try out Takeshita Sasano's "zauna suit." It's amazing (laughs). I sweat an incredible amount! I go to the sauna almost every day, and if I don't sweat, I feel like my body is stagnant and I get tired. So, even in situations where facilities aren't open in the morning or when I'm on business trips to other regions, where there's no sweating and cold baths available, the "zauna suit" allowed me to sweat and enjoy myself regardless of location or time.



Takeshita, a long- established sauna manufacturer, has called it "the world's smallest sauna" (laughs).

Sasano: Ideally, I'd like to go to a sauna in the morning, but there aren't many places open in Tokyo. But with this one card, I can enjoy a sauna experience from the morning, whether at home or on the go.

Many people might associate Takeshita sauna suits with being unfashionable or old-fashioned, but the "zauna suit" looks cool even when you're running. It's also great for walking your dog or going to the driving range. If you use it in cold weather, your body will warm up quickly and you'll sweat a lot.


Sasano: That's right. It's much more effective to wear the "zauna suit" while moving your body than to just sit still in it. Of course, you sweat when you go into a sauna, but that sweat is externally generated. However, if you go in after exercising, you can efficiently produce internally generated sweat.

Takeshita: Currently, at our gym, we also offer online training instruction, and for those who have a "Zauna Suit," we have them do about 10 minutes of training while wearing it, and then take a 2-minute cold shower.

I highly recommend this to women too. Having a habit of sweating promotes skin cell turnover, resulting in noticeably more beautiful skin. You can see that people who exercise not only have beautiful skin, but it also has a firmer appearance. I use a new plank style, like sitting, in the sauna so as not to bother others (laughs), but when I do yoga or light strength training at home, I wear the "zauna suit" to sweat profusely, then take a cold shower! It's the perfect way to feel refreshed. If you're a woman who enjoys half-body baths or hot stone baths, I think you'll definitely love this.



This is a professional-grade item used by top athletes in the Takeshita martial arts scene who need to lose weight, so its quality is guaranteed. I think many people are refraining from going to the gym or sauna these days, so I hope you'll incorporate this item into your daily life as it allows you to sweat efficiently. I would be happy if people with a high fitness IQ who understand that "maintaining good physical condition enriches one's life" would use it in various ways.

View the "My Condition" product list on the Mitsukoshi Isetan online store.



Text: Akiko Yamamoto