Understanding the Lifespan of Human Hair: Growth Cycle Explained

Discover the lifespan of human hair and learn about its growth cycle phases and health management tips.

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Human hair typically has a lifespan of 2 to 7 years. The growth cycle consists of three phases: the anagen (growth) phase, lasting 2-6 years, the catagen (transitional) phase, lasting 2-3 weeks, and the telogen (resting) phase, lasting 2-3 months. Subsequently, the hair falls out, making way for a new hair to grow. This cycle varies by individual due to factors like genetics and age, impacting the length and thickness of hair. Understanding these phases can help manage hair health effectively.

FAQs & Answers

  1. What are the three phases of hair growth? The three phases of hair growth are the anagen (growth) phase, lasting 2-6 years, the catagen (transitional) phase, lasting 2-3 weeks, and the telogen (resting) phase, lasting 2-3 months.
  2. How does genetics affect hair lifespan? Genetics play a significant role in determining the lifespan of hair, influencing factors such as the duration of each growth phase and the overall thickness of the hair.
  3. How can I manage my hair health effectively? To manage hair health, it's essential to understand the hair growth cycle, maintain a balanced diet, avoid excessive heat styling, and regularly condition your hair.
  4. How often does hair fall out and regrow? Hair typically falls out at the end of the telogen phase, making way for new hair to grow. This process is normal, and people can lose 50-100 hairs a day.

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