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Do you think it is possible that a 1.5-solar-mass red giant could harbor an advanced civilization? Explain your reasoning.
Depression
A common and serious mood disorder that affects how you feel, think, and handle daily activities, characterized by persistent feelings of sadness and/or loss of interest.
Subsequent Episodes
Later occurrences or episodes of a condition or illness that happen after the initial episode.
Prevalence
The proportion of a population found to have a particular condition at a specific time.
Mania
A state of abnormally elevated arousal, mood, or energy levels, often associated with bipolar disorder.
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