Question

Why does blond hair have a bigger effect from humidity?

Answer 1

Answer:

30% to 60%--relative humidity in a normal "air conditioned" environment, is what the AC and Heating folks say is acceptable. Below 30 percent, some people experience dryness in their nose and throat; over 60 percent, the air begins to feel uncomfortably sticky. Above 75% is high-- definitely Bad Hair day range.

Answer 2

Answer:

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Coarse, dark hair is especially prone to the problem because it absorbs slightly more moisture than fine, blonde hair, and its length can extend by almost 3 per cent.