Many Japanese individuals suffering from hyperhidrosis, a condition causing excessive sweating, have started using heaters for their feet even in the height of summer. This uncommon method has provided significant comfort to sufferers, as it helps to keep their feet dry. Medical experts continue to search for effective long-term solutions, while this temporary measure is being hailed as a life-saver by the afflicted.

In Japan, excessive care for personal cleanliness and hygiene is culturally emphasized. Therefore, hyperhidrosis can create severe social discomfort for those affected. Also, since social harmony is highly valued, individuals often go to great lengths to avoid drawing attention to their personal issues, hence the usage of unconventional solutions like foot heaters in summer.

In the US and EU, hyperhidrosis is also seen as a medical condition needing treatment. However, the use of foot heaters in summer is not common. Topical treatments, iontophoresis, Botox, and even surgery are popular steps taken for management of this condition in the West.