The Science Behind Hair Loss

Most cases of hair loss originate from hereditary genetics, but there are a few exceptions, including radiation therapy for cancer and diseases such as lupus and diabetes. Generally, hair loss affects the scalp, though it is known to impact the rest of the body in some cases. Human beings normally shed around 100 hairs per day, which isn’t noticeable as we grow in enough new hair at the same time to compensate for it. However, thinning hair is often the indicator of male or female-pattern baldness setting in. Hair loss can also occur in patches.

The process of thinning hair occurs when the shedding and growth cycle is disrupted, involving the growth rate being far outpaced by the loss rate. This is primarily caused by the hair follicle being destroyed and replaced with a patch of scar tissue instead of a new hair upon shedding.