The link between changes in season and occasional hair loss
In autumn, the trees lose their leaves, and the flowers make way for new ones to bloom in the spring. The plant’s life cycle has a lot in common with the hair’s life cycle. The latter is comprised of three distinct phases (anagen, catagen and telogen) during which the hair grows, is maintained, regresses and then falls. It is thus perfectly normal to lose between 25 and 60 hairs a day. In some cases, however, this loss becomes more significant when autumn arrives. What is behind this? A sheer lack of light that affects the hormones and thus has a direct impact on hair growth. The scientific term for this reactional hair loss is acute telogen effluvium, the most common form of diffuse hair loss. The proportion of hairs in the anagen phase shifts to 70% (vs 85% in physiological condition), along with an increase of those in the telogen phase (30%, vs less than 10%), and hair loss can reach up to 300 hairs per day. Seasonal hair loss can also be brought on by stress and accumulated fatigue, often associated with this time of year, as well as by a change in diet.
How to fight seasonal hair loss
Seasonal hair loss can appear at any time, even if you have never been affected before. Help slow it down by adopting some simple, daily habits. Start by paying attention to the hair care you use. Opt for shampoo that is gentle on your hair and scalp. Keep your hair down or loose rather than in tight updos or braids, which can cause the hair fiber to become fragile. And, most importantly, pay closer attention to your diet. Vitamins and minerals play a fundamental role in maintaining a normal hair cycle, especially with regard to renewing the hair bulb’s matrix cells, which divide rapidly. Sufficient amounts must reach the scalp in order to provide it with enough nourishment and to encourage proper hair growth. During changes in season, dietary supplements containing B vitamins, sulfur amino acids, zinc, iron and selenium can be an effective complementary treatment against seasonal hair loss.