Seasonal hair loss: causes, stress and when to worry

What is seasonal hair loss

La seasonal hair loss is a temporary increase in hair loss that occurs mainly in spring and autumn.

This phenomenon, also called seasonal effluvium, generally appears:

• in spring (late February to May)

• in autumn (September to November)

It affects men and women in a similar way.

This is, in most cases, a physiological process linked to the natural hair cycle.

Why hair falls out during seasonal changes

The causes of seasonal hair loss are not yet fully defined. However, there are several hypotheses.

Influence of light and biological rhythms

Some studies link the phenomenon to the variation between hours of light and hours of darkness.
This change can affect the hormone balance and the hair cycle.

Biological inheritance

Other researchers hypothesise a link with the moulting mechanism typical of mammals.

Lifestyle and stress

Another interpretation concerns changes in lifestyle.
In particular, the return to routine after the holidays can increase stress and tension.

Autumn fall: the role of the sun

Autumn fall can be linked to summer sun exposure.

UV rays promote the formation of free radicals.
These can accelerate the entry of hair into the resting phase (Telogen).

The result is a fall that manifests itself after 2-3 months.

Spring fall: the role of cold

During winter, vasoconstriction of the scalp occurs.

This reduces follicle activity.
As a result, many hairs enter the telogen phase.

La fall then manifests itself between February and May.

When seasonal fall is normal

A temporary increase in the fall is considered physiological.

It represents a natural turnover process.

It only becomes important to go deeper:

• the fall lasts too long

• the density visibly decreases

• hair grows back thinner

Stress-induced hair loss: what really happens

Stress effluvium: acute or chronic

La stress-induced hair loss is very frequent.

It may appear:

• during stressful periods

• or 2-3 months after an intense event

This phenomenon is called telogen effluvium.

How stress affects hair

Stress activates the hypothalamic-pituitary axis.

This leads to the release of cortisol.
Cortisol can:

• increase inflammation

• weaken the follicle

• promote the fall

The result is widespread and often sudden loss.

Symptoms of stress-related fall

The most common signs are:

• widespread hair loss

• increased sebum

• itching

• seborrheic dermatitis

• scalp tension or pain

Falling from stress: men and women

In women:

• diffuse thinning

• greater prominence in the central area

In men:

• general thinning

• possible acceleration of receding hairline

In many cases it overlaps with genetic predisposition.

Hair loss and stress: a sign, not a disease

Hair loss is not a disease.

It is a sign of a system that has lost balance.

It often involves:

• nervous system

• metabolism

• emotional balance

Premature hair loss: increasingly common

When the fall starts young

Premature hair loss is on the increase.

Today it strikes:

• about 1 in 5 children

• an increasing number of girls

Causes of premature fall

In the male it is often present androgenetic alopecia.

In girls, the most frequent causes are:

• unbalanced nutrition

• irregular sleep

• emotional stress

• smoking and alcohol

• use of drugs

Signals not to be ignored

• thinner hair

• increased sebum

• progressive loss

• reduction of regrowth

These signals indicate a change in the hair cycle.

Psychological impact of hair loss

Hair loss can have a strong emotional impact.

It can generate:

• insecurity

• social isolation

• anxiety

• loss of self-esteem

In young people this effect is even more pronounced.

Why early intervention makes a difference

Acting in the early stages is crucial.

It allows:

• support the follicle

• improve hair quality

• slow down thinning

Prevention remains the most effective strategy.

Androgenetic alopecia: the most common form

What is androgenetic alopecia

Androgenetic alopecia is the most common form of progressive hair loss.

It is characterised by:

• genetic predisposition

• sensitivity to androgens

• follicle miniaturisation

How it manifests itself

• receding hairline

• receding hairline

• loss in the summit area

• progressive thinning

Over time it can evolve into baldness.

Associated signals

It is often accompanied by:

• seborrhea

• desquamation

• unstable skin

Alopecia areata: sudden patchy loss

What is alopecia areata

L'alopecia areata is a condition characterised by the sudden appearance of hairless patches.

It can appear in a few hours or days.

Main features

• hairless round areas

• absence of obvious symptoms

• possible association with other autoimmune conditions

Emotional impact

The sudden onset often generates great anxiety.

Support is essential to avoid stress-related aggravations.

Scarring alopecias and specific forms

When the follicle does not grow back

Le scarring alopecias result in the destruction of the follicle.

In such cases the hair does not grow back.

Frontal fibrosing alopecia

It is a specific form that mainly affects women.

Main features:

• receding hairline

• slow progression

• possible loss of eyebrows

It is a complex condition that requires specialist attention.

Hair loss: when to investigate

Hair loss can be:

• physiological (seasonal)

• reactive (stress)

• progressive (genetic)

Understanding the difference is crucial.

“Not all hair falling out is a problem. But all signs must be understood.”

Conclusion

Hair loss is a complex phenomenon.

It has no single cause.
There is no single solution.

Understanding the context is the first step to effective intervention