If you’ve ever wondered whether hair growth and hair loss are seasonal, they are. One recent study showed that there seems to be a pattern of shedding hair in the fall, although the reasons for this are not entirely clear.
We do have some ideas, however, why we shed more hair in autumn. The hair loss in autumn is likely linked to hair growth in the spring. There are roughly 100 days between the time hair stops growing and when the hair falls out. And there is a peak in hair growth in the spring. So, it makes sense that there’s a peak in hair loss in the fall.
It’s also possible our bodies are designed to hold on to hair during the summer when hair is most needed to protect the scalp from sunburn.
As the days get shorter, and the weather gets colder, any hormonal changes in our bodies will affect the hair. Hormonal changes play a major role in hair loss.