Influenza (Flu). The flu is an infectious disease that causes symptoms such as fever, cough, sore throat, headache, muscle aches, and chills.The annual flu vaccine can prevent most of the circulating influenza strains.Read about flu symptoms, and learn more about the flu shotÂ».nfluenza (Flu). The flu is an infectious disease that causes symptoms such as fever, cough, sore throat, headache, muscle aches, and chills.
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.ymptoms 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.
Bipolar disorder (also known as manic depression) is a treatable illness marked by extreme changes in mood, thought, energy and behavior. It is called bipolar disorder because a person's mood can alternate between the poles of mania (high, elevated mood) and depression (low, depressed mood).These changes in mood (mood swings) can last for hours, days, weeks or even months. These highs and lows are frequently seasonal.t is called bipolar disorder because a person's mood can alternate between the poles of mania (high, elevated mood) and depression (low, depressed mood). These changes in mood (mood swings) can last for hours, days, weeks or even months. These highs and lows are frequently seasonal.