The Japan Health & Research Institute contributes to the development and utilization of onsen (hot spring) facilities and the management of general health and research centers. To improve and maintain health and vigor, the Institute also carries out research and surveys to promote healthy living, and conducts health check-ups.
* When bathing, make sure to consider your own condition and respect bathing rules.
* After drinking alcohol
Drinking alcohol suddenly changes your blood pressure, which can present the risk of cerebral anemia.
* Right after eating
Bathing affects your blood, skin, and kidneys, which can worsen digestion and absorption. After eating, make sure to rest for thirty minutes to an hour before getting in an onsen.
* Right after exercising
Bathing can make it harder for muscles to relax and can place a greater burden on your heart. Wait at least thirty minutes after exercising before bathing.
* When you have a cold
You shouldn't immerse yourself in hot water when you don't feel well. If you don't have a fever, it's a good idea to take a relaxing bath in warm water while taking care not to become chilled afterwards.
* Bathing in hot water
Elderly people or people who have high blood pressure, arteriosclerosis, heart disease, or disorders of the respiratory organs should not bathe in water that is 42°C or hotter.
If your body is weakened by illness or other causes, the medicinal components in onsen may have adverse effects.
* People with the following conditions should avoid onsen:
* People with the following conditions should avoid sulphur springs:
* People with the following conditions should avoid drinking water from the following types of springs: