What could cause drowsiness?
Patient: i am 30 years old height 1.55 weight 70 kgs i dose off for a few minutes excessively during daytime. it doesnt matter where i am in church, sitting talking to people. this has been happening since i was a child and now its becoming embarassing. i cant visit anymore Doctor: Hi,  You have features of excessive daytime sleepiness. Most likely it is a part of sleep disorder. The common causes are narcolepsy and obstructive sleep apnea. A sleep study would confirm the diagnosis.  Hope I have answered your query. Let me know if I can assist you further.  Take care.  Regards, Dr. Sudhir Kumar, Neurologist