Please choose the correct ending to complete the given sentence: Health: [header] How to identify manic behavior [title] Look for changes in energy. [step] One of the hallmark symptoms of bipolar disorder includes intense swings from high to low states of energy. Mania reflects the extremely high energy states.

Ending1: Manic energy levels can vary from very low levels of energy within a given year to very high levels of activity within the individual over the decades. They are rarely present in both civil and sexual relationships. Ending2: [substeps] You may experience manic energy almost every day. Low energy levels combine with despair, anxiety, nervousness and stress, something called generalized mania. Ending3: Take your mood swings into account, and note any changes you observe in yourself. If : [substeps] You initially feel like there is no energy in your brain. Ending4: During this time, a person may feel unusually motivated and excited. Others may be able to recognize this burst of energy through restlessness in behavior and rapid speaking to the point that they can't keep up.

Answer format: ending1/ending2/ending3/ending4