Sleepiness is a normal thing for everyone, especially when it's in a busy activity so that the rest time is very less, body fatigue, is in a boring atmosphere, and so forth. Generally adult sleep time is 7- 9 hours a day.
For each age different needs depend on age, activity, and growth. If you feel a long sleep time, but when the body feels limp, stay sleepy and can fall asleep under any circumstances, then it can be suspected of the possibility of narcolepsy.
In addition to drowsiness, it is also accompanied by muscle weakness, headache, hallucinations, depression. In addition to narcolepsy, excessive sleepiness can also be due to the consumption of certain drugs (asthma medications, blood pressure, heart medications), diabetes, hypothyroidism, and excess nicotides in cigarettes. When the sleepiness you feel the more disturbing you in work, interfere with your activities, the body feels limp throughout the day then you should see a doctor.
The doctor can check whether there are abnormalities in the sleep cycle, and the signals that can occur during your sleep. This examination can be performed by a psychiatrist. It can also be accompanied by an EEG (electroencephalogram), CT scan, blood lab, etc.
Some things you can do: avoid excess caffeine and smoking Set the right diet and exercise regularly Set the correct sleep patterns Fill in with the activities during the day so you can resist sleepiness May be useful