There are a lot of websites on Bipolar Disorder as well as the Links on this website.
Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks. Symptoms of bipolar disorder are severe. They are different from the normal ups and downs that everyone goes through from time to time. Bipolar disorder symptoms can result in damaged relationships, poor job or school performance, and even suicide. But bipolar disorder can be treated, and people with this illness can lead full and productive lives.
Here is a link for a website that will give You more information on Bipolar Disorder;
http://www.nimh.nih.gov/health/publications/bipolar-disorder/complete-index.shtml
Hang in there, you being there is already a great support to them.
Best of luck
Well, you can learn all about bipolar from the health links here on Med Help, like the symptoms and such.
I think the biggest thing for me is to know that someone actually cares. It is so hard for me to express when I'm not doing well. I tend to hide things because I have this huge fear that no one really cares, or if I explain it to them they will dismiss me. For example, I forget things. People tell me things like "make a list" or "put a reminder on your calendar." It really doesn't help. It's not that simple. It frustrates me when people keep telling me the same things. I'd rather just have someone listen and say nothing then give me a hug or something. That's just me, though.