Yes, curly hair is uncommon.
According to available data, less than 20% of people naturally have curly hair. This percentage further decreases when considering those who choose not to maintain or embrace their curls. This information makes it clear that straight and wavy hair is more prevalent worldwide than curly hair.
Why is curly hair less common?
The prevalence of curly hair is primarily determined by genetics. Specifically, the shape of the hair follicle. Here's a quick breakdown:
- Straight hair follicles are typically round.
- Curly hair follicles are oval-shaped, causing the hair to grow in a curved pattern.
The genes that dictate the shape of hair follicles are less likely to produce curly hair compared to those producing straight or wavy hair. Because of this, curly hair is less common worldwide than straight or wavy hair. Curly hair is more common in certain ethnic groups.
Prevalence of Curly Hair
While curly hair is not the norm globally, the exact percentages can differ based on geographic regions and ethnic groups.
Here is a summary table:
| Hair Type | Approximate Global Prevalence |
|---|---|
| Straight Hair | Most Common |
| Wavy Hair | Common |
| Curly Hair | Less than 20% |
Conclusion
In conclusion, due to genetic factors, curly hair is less prevalent compared to straight or wavy hair. The reference, stating that less than 20% of the population has naturally curly hair, confirms its uncommon status.
