I am only 16 and I am always tired. I go to bed at around 11ish every week night and wake up at about 7. and I am always tired through the day. On a weekend I will get tired at around 9, I will be asleep by half 10. Is there any reason for this ?

You should see a doctor as always being tired could be any number of things. You could also try adjusting your sleep schedule. Try going to bed earlier and getting up later. Sometimes some people only need 6 or 7 hours of sleep and anything more makes them feel sluggish. Others need 8 or 9 hours of sleep and anything less makes them feel sluggish.

Personally, I run on about 6 hours of sleep, and anything more makes me feel like crap. I also exercise for an hour every morning which helps me feel energized for the day.

But the important thing is to see a doctor. It could be as simple as changing your sleep or eating habits, or it could be a medical condition.

I agree with above. I've hear that teens actually need a LOT of sleep. I'm 20 and I still take naps. I get 6 hours of sleep at night usually. I would get more but because of my work and class schedule I rarely sleep more than that. I notice that when I go to bed sooner I function MUCH better throughout the day. Going for a walk or excercising can help too because it helps get oxygen to your brain and muscles. Take Gym seriously. And if you don't have that class then take a walk after school or jump some rope. Jumping rope is a great way to get your blood pumping and making you feel energized. :)

I generally can't change my sleep pattern as sleeping before I do is impossible with the work load I have and getting up later is also impossible as I attend college at the same time everyday.
I already get eight hours of sleep a night.

And I walk half of the way to college every morning and night, which is a 20 minute walk and walk my dog every night.

I take it you're doing PSEO then?

What is PSEO ?

Oh I just googled it. Is it further education ? I'm from england.

So you go to college at 16? It's a high school program here in america where students in the 11th and 12th grades can take college courses and simultaneously knock out high school and college credits.

Yeah we finish the equivalent of high school at 15/16 depending on your birthdate and then atm it is optional to choose further education. But it is being made compulsory soon. College is for two years, so till you are 17/18. And then uni if you choose to.

Ah okay.
Anyway, back to your original question; Have you seen a doctor for your issues?

A doctor is a good idea.

Some additional thoughts:
Teens are like toddlers in that your growth and development - physically, mentally, emotionally and in the case of teens, hormonally, is huge. Your body needs more rest than it is getting. Teens generally are programmed to stay up late and sleep in but school doesn't permit you to do that, so you need to gradually train yourself to go to bed earlier. Go to bed earlier by 15 minutes and stick with that a few days, then dial back another 15 minutes for a few days and so on until you are regularly going to bed at no later than 9:30 or 10 on school nights. You probably require 9 or 10 hours of sleep and are only getting 8. 8 is what people need when they aren't growing and developing.

Teens often have terrible diets, too. Many don't like breakfast, eat junk at school because cafeteria choices are poor quality, and eat more junk at night because they've starved their bodies all day. Consider what you are eating and whether you might be able to get in a bowl of cereal, some fruit, some cheese and other healthy snacks through the course of the day. Ask your parents if they can provide you a multi-vitamin for teens, too. This can help if your diet is depleting you of key vitamins and minerals - like if girls are low on iron, they can get anemic which means your body is literally unable to transport enough oxygen, which would make anyone tired. Lack of B vitamins can make a person tired, too, and a good brand of multivitamin will provide a safe daily boost (ask your doctor or pharmacist).

Finally, it can make a huge difference to make your room a sanctuary. Make your bed even if it's right before you get into it - the smooth, crisp sheets will feel much better than a wadded up mess. Wash your face and brush your teeth - feeling clean and good when you go to bed helps you relax. Close up your closet doors and dresser drawers and pick things up, not for your parents but so that your room is a really pleasant and restful place to be.

Also cut the electronics at bedtime. Turn off the phone, Ipod, etc. Read a book for a while - it really helps to be in the habit of reading (not school work- something you find engaging and purely entertaining) for a half hour each evening.

Also, school is really sedentary - sitting in class after class. If you're not in a sport or activity, get some exercise into your day even if it's just dancing around your room to your favorite music. It's hard to sleep if we've not done anything physical all day. Fresh air can help for some reason, too - ever had that experience where you're outdoors all day and they you sleep like a rock?

I think if you try a variety of these things, and also rule out medical causes like anemia (common in teen girls), you will have more energy.

No, I go every month to see the nurse so I will ask about it next time I go.