Seeing grey hairs appear unexpectedly can be surprising, especially when it happens at a relatively young age. While ageing and genetics are widely recognised factors behind grey hair, research has also explored how illness and prolonged stress may influence the process.
Hair does not usually turn grey overnight because of a single stressful event. Instead, changes in hair colour are linked to what happens inside the hair follicle, particularly to the cells responsible for producing pigment.
Here is what you should know about the possible connection between stress, sickness and grey hair...READ THE FULL ARTICLE HERE .
How Does Hair Get Its Colour?
Hair gets its natural colour from a pigment called melanin.
Specialised cells in the hair follicles, known as melanocytes, produce this pigment. The amount and type of melanin produced influence whether hair appears black, brown, blonde or another natural shade.
As people age, the activity and number of pigment-producing cells can decline. As a result, new hairs may grow with less pigment and eventually appear grey or white.
How Can Stress Affect Hair Colour?
Stress causes a series of biological responses in the body. Researchers have investigated whether these responses can also affect the cells responsible for maintaining hair pigmentation.
Studies have suggested that severe or prolonged stress may affect melanocyte stem cells in hair follicles.
These cells help replenish pigment-producing cells. When the supply or function of these cells is disrupted, the follicle may produce new hairs with reduced pigmentation.
This means that stress may contribute to premature greying in some circumstances, although the relationship is more complex than simply saying that every stressful experience causes grey hair.
Can Sickness Also Cause Grey Hair?
Certain illnesses and physical stresses on the body may be associated with changes in hair growth and pigmentation.
When the body experiences significant physiological stress, normal hair-cycle processes can be disrupted. Some conditions may also affect the cells and biological pathways involved in hair pigmentation.
However, grey hair by itself does not necessarily mean that a person is sick.
Many people develop grey hair naturally as part of ageing or because of their genetic makeup.
Genetics Still Plays a Major Role
If your parents or close relatives developed grey hair early, you may also be more likely to experience premature greying.
Genetics can influence:
* The age at which grey hair begins.
* How quickly the hair loses its pigment.
* The pattern in which grey hairs appear.
* How much of the scalp eventually becomes grey.
This is why two people of the same age can have very different amounts of grey hair.
Other Factors That May Be Linked to Premature Greying
Stress and illness are not the only factors that researchers have considered.
Premature greying can also be associated with:
* Family history.
* Natural ageing.
* Certain nutritional deficiencies.
* Some autoimmune conditions.
* Certain medical conditions.
* Smoking and other lifestyle factors.
Not everyone with premature grey hair has an underlying medical problem.
Does Plucking Grey Hair Make More Grey Hairs Grow?
No.
Plucking one grey hair does not cause additional grey hairs to grow from other follicles.
However, repeatedly plucking hairs can damage the follicle and may contribute to thinning in that particular area. If grey hair is unwanted, trimming or using appropriate hair-colouring products may be preferable to repeatedly pulling it out.
Can Grey Hair Be Reversed?
Whether grey hair can be reversed depends largely on its cause.
Grey hair caused by normal ageing or genetics generally cannot simply be restored to its original colour through ordinary lifestyle changes.
However, if premature greying is associated with an underlying nutritional deficiency or another treatable condition, addressing that problem may help prevent further changes in some cases.
It is important not to assume that supplements or so-called anti-greying products can restore natural hair colour without evidence.
When Should You See a Doctor?
Grey hair on its own is usually not an emergency. However, medical advice may be worthwhile if the change occurs unusually early or is accompanied by other symptoms.
Consider speaking with a healthcare professional if you experience:
* Very rapid or unusual changes in hair colour.
* Significant hair loss alongside premature greying.
* Changes in skin pigmentation.
* Persistent fatigue or weakness.
* Unexplained weight changes.
* Other new or unusual symptoms.
A doctor can determine whether further evaluation is necessary.
What Can You Do to Protect Your Hair?
Although genetics and ageing cannot be controlled, maintaining good overall health can support normal hair and scalp function.
* Eat a balanced diet containing adequate protein and essential nutrients.
* Avoid smoking.
* Manage prolonged stress through healthy coping strategies.
* Get adequate sleep.
* Protect your scalp and hair from excessive chemical or heat damage.
* Avoid unnecessary supplements unless recommended by a healthcare professional.
* Seek medical advice when hair changes are sudden or accompanied by other symptoms.
The Bottom Line
Grey hair is a normal part of ageing for many people, and genetics remains an important factor in determining when it appears.
Research has also suggested that severe stress and certain forms of physical stress may affect the biological processes involved in hair pigmentation. However, this does not mean that every stressful experience will turn someone’s hair grey.
If premature greying occurs alongside other unexplained changes in your health, getting professional medical advice can help determine whether there is an underlying cause worth investigating.
