The postures of patients with bronchial asthma vary depending on the severity and extent of the attack. For patients with mild symptoms, they can assume any posture they prefer without any impact; they can sleep however they wish. However, during severe asthma attacks, patients are forced to adopt a semi-sitting or upright sitting position to breathe. This isn't a choice, but a necessity when the disease reaches a severe stage, where such positions might slightly ease breathing. Many asthmatic patients cannot lie down at all during serious attacks, as lying down would intensify their chest tightness and breathing difficulties.