The weather is getting hotter and hotter, and all kinds of "heat killers" on social platforms are on the scene. This year, a cooling ice ring that can be worn around the neck is on fire, claiming that it can "freeze naturally" below 28 °C, and it can be used repeatedly without charging, and adults and children can use it.
On June 10th, the reporter saw in a daily necessities store that all kinds of seasonal summer supplies were placed in the most conspicuous position at the entrance, and the summer ice ring was placed in the C position as a new product of the season, with a price of 98 RMB, which was divided into three styles according to the size of the neck, and provided samples of different specifications and colors.
As can be seen from the product description, the filler PCM (a phase change material) will be solid in the environmental state below 28°C, and when it comes into contact with the human body, it will absorb human heat and transform into a liquid form. When the store is fully air-conditioned and the temperature is low, the ice circles tested are solid. The reporter tried it, and there was no discomfort on the neck, but there was no significant drop in neck temperature.
In a membership-based supermarket in the north of the city, the reporter saw another cool ice ring with similar functions, divided into pink and blue, with a price of 49.9 RMB. Similar to the ice ring, the packaging claims that the filling will naturally solidify below 28°C, so it can be worn by both adults and children. In the precautions for this product, the product filler is marked as n-alkane organic matter in detail, and it is also indicated that it is far away from fire sources and high-temperature places, the use environment does not exceed 50 °C, and it should not be placed in a place that can be reached by babies or pets.
Search for keywords such as "ice ring" on the e-commerce platform, and there are various styles and colors of cooling ice circles to choose from, with prices ranging from single digits to nearly 100 RMB. Depending on the material of the filler, some need to be frozen in the refrigerator before use, while others will become solid at 18°C or below. In the comment area of social platforms, netizens have mixed reviews of cooling the ice circle. Some netizens used it in the office for 2 hours and felt that their necks were always cool. Some netizens also use it outdoors, "I don't feel much coolness, just a little cold, it's better to get some water to my neck."
Although the product precautions on the market do not indicate the unsuitable people, some netizens pointed out that people with cervical spondylosis are not suitable for this kind of cooling products. Is this statement of netizens scientific? Hang Baiya, director of the Department of Orthopedics and Traumatology of Nanjing Hospital of Traditional Chinese Medicine, told reporters that patients with cervical spondylosis should pay special attention to two points in their daily life: one is to avoid maintaining the same posture for a long time, such as bowing the head for a long time is not advisable; On the other hand, it is necessary to pay attention to the cold and warmth of the neck and its surroundings. He said that if the cooling ice circle can keep the neck at a low temperature for a long time as advertised, it is better for patients with cervical spondylosis to use it with caution. He reminded patients with cervical spondylosis that no matter whether the weather is hot or cold, they should not be greedy for cold, so as to avoid the cold neck causing or aggravating the original symptoms of cervical spondylosis.
