D. When you set a goal, you want it to be difficult but realistic. For example, if you are not very good at running, you maybe want to set a goal like "try to run 1 mile without getting tired this month". This is a difficult goal to reach, but it is realistic. If you had said "Run 100 miles without getting tired this month", this is unrealistic because you are not very fit
hope this helps:)
Answer: Bipolar disorder
Explanation:
Bipolar disorder is a mental condition in which affects the moods of the individual. It swings from one mood to another.
This condition is known as manic depression. There are many symptoms of bipolar disorder. The person might not feel like sleeping for some days but after few weeks he might sleep more.
Symptoms are: episodes of depression, feeling very high, overactive. It can lasts for several weeks or days.
Marathon runner’s use aerobic energy <span>
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True you are aware of your surroundings
