During the 2012 presidential election, barack obama was endorsed by singer and celebrity beyoncé knowles. to the extent that people pay attention to her and care about what she says, she is a(n):

An opinion leader means a person or association who has the power to affect and change the public opinion in a specific field; these people can be from any walk of like, politics, presenters, singers, movie stars etc.

Bipolar disorder

Explanation:

Lila likely meets the criteria for bipolar disorders. Lila had an episode of depression about four months ago, and bipolar disorder is a mental condition that leads to extreme mood swings; from a low depression (Lila faced this 4 months ago) to emotion highs (where she is energetic, elated and hyperactive). She has become so interested in savings and investing (another effect of manic depression).