1. Degradation of physiological functions: With age, the throat reflex and swallowing function of the elderly will gradually weaken, leading to food or liquids easily entering the airway and causing coughing.
2. Disease factors: Neurological disorders such as stroke, Parkinson's disease, etc. may affect the control of swallowing nerves and cause uncoordinated swallowing movements. Pharyngeal diseases, such as chronic pharyngitis and vocal cord paralysis, may lead to decreased pharyngeal muscle function and increased risk of coughing. Esophageal diseases, such as esophageal stenosis and esophageal motility disorders, can also affect the smooth passage of food.
3. Poor lifestyle habits or environmental factors: Eating too quickly or too quickly, swallowing food without sufficient chewing. Talking or laughing while eating distracts attention from swallowing. Dry mouth, reduced saliva secretion, affecting the moistening and swallowing of food. Improper selection of tableware, such as improper operation when using slender tools such as chopsticks. The noisy or distracted environment can also easily cause elderly people to become distracted and choke.