Beat the Heat: How IceBattery Fresh® AVA Cools You from Within

Summertime can be brutal, and with rising temperatures, heatstroke and fatigue are common concerns for everyone. However, the innovative IceBattery Fresh® AVA has emerged as an effective solution for cooling down your body from the inside out using a unique technique known as "palm cooling."

The Science Behind Palm Cooling

The primary reason that palm cooling is effective during sweltering weather lies in the unique blood vessels found in the palms, known as AVA (arteriovenous anastomoses). These specialized vessels form a direct connection between arteries and veins, functioning as a "superhighway for temperature regulation."

These vessels are mainly found in hairless areas of the body such as the palms, soles of the feet, and face. Notably, the fingers have a significantly larger surface area to volume ratio—up to 22 times greater than that of the trunk—which allows for efficient heat dissipation.

How Palm Cooling Works

When the AVA vessels are cooled down to a temperature of 10 to 15 degrees Celsius, the cooled blood travels through these vessels to the skin, effectively returning to the body's core. This process allows for a rapid and efficient decrease in core body temperature. Compared to traditional cooling methods such as applying ice packs to the neck or forehead, palm cooling is not only quicker but also more comfortable and safer, avoiding the harsh stimulation of an ice bath.

According to a comparative effectiveness study conducted by ITE, palm cooling proved to be the most efficient method for lowering core body temperature. This technique has gained significant attention among athletes, healthcare professionals, and everyday users.

Clinical Evidence Supporting Palm Cooling

Research on palm cooling has sparked considerable interest in both medical and sports communities. According to a study led by Professor Koji Miyashita at Chukyo University, over half of the university baseball team players reported experiencing effective heatstroke prevention and fatigue recovery through the use of IceBattery products (published in the Journal of the Japan Athletic Training Society).

Moreover, a study by Dr. Craig Heller from Stanford University indicated that palm cooling can improve physical endurance by over 30% while also enhancing recovery from fatigue.

As Professor Hirata pointed out, the ratio of surface area to volume in the hands is exceptionally high. When the AVA vessels in the hand dilate, their diameter can become approximately 10 times that of capillaries, significantly increasing blood flow. This amplifies heat dissipation through these vessels, effectively helping to maintain a stable body temperature.

Product Features of IceBattery Fresh® AVA

IceBattery Fresh® AVA is designed to be placed in a household freezer overnight before use, ensuring that its surface temperature remains between 10 to 15 degrees Celsius. This specific temperature is crucial, as excessively cold temperatures can cause blood vessels to constrict, impeding blood circulation.

- Features:

- Reusable and does not require power.
- Provides over three hours of cooling effect at 30 degrees Celsius (up to six hours with the included cooling pouch).
- Ideal for daily use, including commuting, golfing, outdoor sports, and attending events to prevent heatstroke.
- Effective for staying cool in crowded places like subways and for post-exercise recovery.

Additional Information

- Product Name: IceBattery Fresh® AVA
- Retail Price: 3,900 yen (tax included)
- Usage: Freeze overnight and hold in the palm.

This product has also received positive feedback as a health support tool for employees and as a summer gift.

Company Background

Innovation Thru Energy Co., Ltd. has been pioneering CO₂ zero-emission, reusable cooling technology through IceBattery® for over 18 years. They have provided low-temperature logistics solutions to over 350 domestic and international businesses and are currently expanding their product offerings to general consumers, including solutions for outdoor workers and palm cooling devices.

For more information, visit IceBattery's Website or contact us directly.

References

- Miyashita, Koji. "The Impact of Icing on Condition of Baseball Players in University Teams." Journal of the Japan Athletic Training Society, vol. 9, no. 2, 2024, pp. 213-216.
- Craig Heller, Stanford University. "Effects of AVA Cooling on Temperature Regulation and Physical Performance."
- Hirata, Kozo. "Regulation of Heat Dissipation from Extremities through AVA Blood Flow." Journal of the Japan Society of BioMetereology, vol. 53, no. 1, 2016, pp. 3-12.