by supporting its neck and keeping it warm and yeah
otherwise you get cold
its dead
Put it on lo or simmer on the stove for rices or keeping it warm
incubating eggs means keeping them warm ready to be hatched
The main benefit of getting neck warmers made with rice is one of efficiency. The rice is able to retain the heat for up to 30 minutes. As well as keeping one warm the rice neck warmer can relieve aches and pains.
Keeping warm is not a change - of any sort.
Koalas have no problems keeping warm. Their fur is specially insulated to keep them warm in cold weather, and cool in hot weather.
Neck injury
Foil itself will not warm it, it has to already be warm for it to insulate it.
For keeping it warm
No if you do it the right way. You line up your neck with your spine. Then, you put your chin to your chest. While keeping your chin to chest, roll your neck to the side. You are not supposed to roll your neck to the back. Roll your neck back to the center while still keeping your chin to your chest. Then you do the same thing just to the opposite side.