Many of those involuntary actions are mysterious, annoying, just plain weird.
许多不自觉的行为都是难以解释的、烦人的、很奇怪的。
日常生活医学科普
It controls your body's involuntary actions like breathing, heart rate and blood pressure.
它控制着你身体的无意识动作，比如呼吸、心率和血压。
Engvid-Adam-课程合辑
So your brain controls all the voluntary and involuntary actions of your body.
所以你的大脑控制着你身体的所有自愿和非自愿行为。
英语百科
Involuntary action
An involuntary action is one which occurs without the conscious choice of an organism. If it occurs specifically in response to a stimulus, it will be known as a reflex.
Involuntary actions are opposite of voluntary actions that occur because of choice. Involuntary actions may or may not occur with the awareness of the organism performing it.