"Huh? By the way, aren't you two cold? I saw that those classmates were wearing a lot of clothes, but they were still shivering from the cold. Koizumi asked curiously.

"Hahahaha! Sister Quan, this is the benefit of our insistence on fitness! Yu Yizhou said proudly.

"Yes, in fact, I was dragged by Yizhou to accompany him at the beginning, but then I got used to fitness, and found that the whole person was in a very good physical condition, so I have been sticking to it." Le Hao whispered, and in the dim night, Koizumi found that it might be due to the blessing of spiritual power, and she saw the firmness in Le Hao's eyes: "Moreover, I am determined to devote myself to the vast and profound and infinite applied physics like Herman, and I need a healthy body to conduct long-term research......"

"Hahahaha, okay, okay! Don't scare Sister Quan! Seeing that Le Hao was about to start his ideal speech again, Yu Yizhou hurriedly interrupted, turned around and explained to Lin Xiaoquan:

"Lehao this Frankenstein, he is very determined, and he wants to do scientific research. If he were allowed to continue, he would be able to do it for three days and three nights. By the way, where did you just go? ”

"Fitness—" Koizumi reminded him.

"Yes, yes, fitness. Because both of us insist on fitness, our physical fitness is not bad. I feel cold, but I don't feel the same cold as other people. ”

After listening to this, Koizumi thought thoughtfully: It seems that his physical fitness still needs to be improved. At the same time, he quietly "looked" at the two boys with his mental power, maybe he hadn't observed them carefully before, the two of them were not only tall, but they looked at their hands and feet very long, and their limbs were strong and strong.

"By the way, Sister Quan, you don't look very cold." Yu Yizhou's words interrupted Lin Xiaoquan's thoughts.

"Huh? Oh! I wear more! And I also brought a warm bag with me. Koizumi explained.

Lin Xiaoquan saw other girls use baby warmers a few years ago, and he also tried to DIY a simple version of baby warmers: iron powder, activated carbon and salt water are simply stirred evenly, put into plastic bags, and leave ventilation holes, and then put a medium-sized flannel bag on the outside. However, the material is not good, and it is also easy to leak, so it is not convenient to carry it on the body.

Later, when I was taking care of my grandmother, I was inspired to watch my grandmother apply hot compresses to her shoulders and neck, and made various hot compress packs.

Prepare a piece of cloth, cut it into two palm-sized pieces, fold it in half with the front side facing inward, and sew the bottom and sides together; When sewing, be careful not to sew to the end, leave a side of about two centimeters, and fold the edge back a little, wrap a rope, and then fix it with a needle and thread.

Next, turn the bag over and a bag that can adjust the mouth of the bag is ready.

Pour the beans into the prepared cloth bag, pull the string tight, and tie the mouth well. Then put the whole cloth bag into the microwave oven or pot to steam, at this time the whole cloth bag is warm, about 50 degrees, just hold it in the palm of your hand.

In addition to red beans, black beans, mung beans, and soybeans, rice or coarse salt is fine, but Lin Xiaoquan found that red beans absorb more calories under the same conditions, and the effect is the best.

If you use red beans, the cloth bag passes through the dormitory indoors for two hours, and there is still residual temperature. Moreover, when making cloth bags, fleece cloth is used, and the thermal insulation effect is even better.

The two boys saw Lin Xiaoquan patting his stomach, and he didn't ask her to show it, because the temperature opened the placket, and the cold wind poured back was really uncomfortable, and they also understood that the warm bag should be placed in the clothes as much as possible to keep warm.

Immediately, Koizumi's words brought the thoughts of the two back to their eyes.