An Average Human Has Between 85,000 And 150,000 Hair On Their Head

Human beings have between 85,000 and 150,000 hairs on their head.

People with blonde hair have the most, while redheads have the least.

Each strand is about 0.08mm thick and grows between 0.1mm and 0.2mm every day, equating to about 30m in hair length and 6cm³ in hair volume.

A hair strand is 90% keratin and growth is initiated by its root, which then continues to produce new material for two to six years without interruption.

This will result in a hair strand of 80cm if it is not cut.

The growth phase is followed by a resting phase which lasts for two weeks before the root begins to produce a new hair.

The new strand pushes its predecessor up to the skin’s surface until the old hair eventually falls out.