If the weather is fine.

If the weather is very cold, then I will tremble for a short time, and then I will continue to tremble.

In order to resist the cold climate and maintain normal body temperature, the body will generate a lot of heat through fear of cold. So as to ensure the normal physiological function of the body. Generally speaking, the body is in urgent need of energy supplement. When you tremble, your muscles twitch. At this time, cells will generate energy to support muscle movement. Most of the generated energy is lost in the form of heat except for some of it used for cell activities, so people will tremble when they are cold.