Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?
This is your opportunity to ask questions. No question too simple or too silly.
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Notes -
Hair is definitely a secondary sexual characteristic that acts as a signal of fitness.
Maintaining hair isn't the most metabolically expensive thing in the world, but it probably does cost something. Poor health often results in hair loss or weak, dry and frizzy hair. Acute or chronic stress can cause hair follicles to stop working and shed their hair, the medical term is telogen effluvium.
Perhaps baldness can be confused with hair loss from poor health and stress as well?
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