I want to know what causes someone to feel sleepy all day.?

There are many reasons that a person may become or stay incredibly sleepy all the time.

One is depression. Ask yourself; is your friend depressed a lot lately? Does he have a negative outlook on everything or on lots of things? Though keep in mind, that being sick or physically drained all the time can CAUSE depression.

Second is called Fibromyalgia. This is a disease that is diagnosed by symptom check, since there is no blood test for it. The symptoms of the range from being sleepy alot, aching all over a lot of the time, having bad cramps and pains in muscles and joints, and having skin and nerve issues. I believe there are more, but I can't remember all.

For this disease, since they have not created a way to test for it, they have not created a way to cure it, in other words they don't really have a medicine directly for it. What they do is treat each symptom. If you have muscle and joint pain, then they will give you pain pills, or anti inflammatory pills. If you have head aches, then they can give you head ache meds, and if you have nerve issues, then they treat that.

The third thing is called Sleep Apnea. This is where a person sleeps but does not breathe fully or correctly whilst sleeping, causing their body to remain tired and energized. The treatment for this is usually a sleep apnea machine, a machine which is worn over the face (over mouth and nose) and gently (but strong enough to help you get the oxygen you need) blows air into your airways throughout the night. This will greatly re-energize a person after just a few nights.

Could be alot of reasons. Some meds cause this. If he's getting poor sleep, ie, like sleep apnea. Possibly, poor diet and lack of exercise; or depression. A Dr's visit can help determine the cause.

Sometimes people who are really out of shape and eat poorly feel tired often. Also when people are depressed they feel tired. A doctor could help so could a friend.

if i were him, i,d see a doc.