Every autumn, the same question arises: do we really lose more hair during this period, or is it a collective impression?
What observation suggests
Several studies have observed a seasonal variation in the number of hairs in the telogen phase (resting phase before shedding), with a peak often noted in late summer and autumn. This phenomenon is thought to be linked to variations in light and temperature, similar to some mammals, although the exact mechanisms in humans still need to be confirmed.
Why it's not just a myth
Seasonal hair loss is therefore well-documented, but it remains temporary (usually a few weeks) and differs from chronic or progressive hair loss linked to other factors (genetics, hormones, deficiencies).
How to tell the difference?
If hair loss is limited to a few weeks and is not accompanied by a visible widening of the part or a more apparent scalp over time, it is likely a normal seasonal variation.
Should you adapt your routine during this period?
Some people choose to strengthen their hair care routine (treatments, LED cap) during periods of increased seasonal hair loss, as a precaution and to support the scalp, without it being an absolute necessity.
This information is provided for educational purposes only and does not replace the advice of a healthcare professional.
