Hair loss in autumn is a very common phenomenon, so much so that we wonder if it is truly normal. Today we analyze what falls within the limits of normality and when there is cause for concern.
The human hair growth cycle
To understand why hair loss increases in autumn, we must first understand the human hair growth cycle. Hair goes through three phases: anagen (growth), catagen (transition), and telogen (renewal). During this telogen phase, hair naturally falls out to make way for new hair. This cycle is continuous and can vary by person, but on average, about 50-100 hairs are lost per day.
What causes seasonal hair loss?
Hair loss occurs when hair follicles shrink and can be triggered by various factors. The factor most studies point to is environmental changes, such as temperature fluctuations, as these can affect our body's hormone production. In summer, sunlight increases, causing hair to enter the telogen phase of its hair cycle. When sunlight decreases in autumn, the follicles reactivate, and the growth cycle continues. The resting hair falls out, and new hair begins to grow. Each hair fiber has its own cycle and its own timing.
However, there are some factors that can negatively affect our hair health and thus cause hair loss, such as:
- Dietary changes: A diet deficient in essential nutrients such as proteins, iron, or zinc can increase hair loss. Adequate intake of antioxidants is also vital.
- Stress: Stress is a factor that can worsen hair loss at any time of year. Changes in our routine and work-related worries can be triggers.
- Pregnancy or illness: Both conditions cause hormonal changes that can result in thinner, less shiny hair that sheds more easily.
The good news is that this more noticeable loss during autumn is reversible. Excessive and prolonged hair loss that does not respond to positive changes in our lifestyle is only a cause for concern. In this case, it is best to consult your trusted professional.
Hair loss: What measures can I take?
As a first step, it is important to identify if your case falls under the three main factors mentioned above and take appropriate measures. Hair health begins at the root, and a completely balanced scalp is key.
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