breathing holding

Breath-holding, shallow breathing and hyperventilating can all trigger something called the sympathetic nervous system ( SNS).

屏气凝神、呼吸短促和气喘吁吁都会触发交感神经系统。

Action: Lean the trunk forward slowly and you will feel stretching on lower back ( Fig6), keep breathing and holding the position for30 seconds.

动作：身体慢慢向前弯曲，你会感觉到背部被拉伸的感觉（图6）。

He was later seen nearby 'shouting and screaming'. The agitated yob was breathing heavily and holding a knife with blood on the handle.

但是他的左臂和肩膀已经被刺伤，随后有人看到他在附近大喊大叫。丧失理智的何某大喘着粗气，手里握着带血的刀。

A doctor had removed a breathing tube and was holding a phone to his face.

医生拿掉了氧气管，把电话举到他面前。

Clinical study of cerebrovascular reactivity in cerebral infarction by transcranial color Doppler ultrasound and breathing-holding test

经颅彩色多普勒超声结合屏气试验评价脑梗死患者脑血管反应性