What is the effects of humidity on the hair structure and resulting style?

Humidity can significantly impact hair structure and styling. High humidity levels cause hair to absorb moisture from the air, leading to swelling of the hair shaft, which can result in frizz and loss of defined styles. Curly or wavy hair may become more voluminous and unruly, while straight hair can lose its sleek appearance. Consequently, hairstyles may not hold as well, requiring more frequent touch-ups or the use of anti-humidity products.