Healthy looking hair is influenced by much more than the products used in the shower.
Genetics play an important role in hair density and hair loss, but nutrition, scalp care, styling habits, stress and general health can also affect the condition of the hair and how much shedding someone experiences.
There is no single routine that can guarantee thicker hair, particularly when hair loss is genetic. However, understanding what supports normal hair growth can help protect existing hair and make it easier to recognise when a change deserves medical attention.
1. Eat a balanced diet rather than relying on hair supplements
Hair follicles require a regular supply of nutrients to produce healthy hair.
Protein is particularly important because hair is largely made from keratin, which is a type of protein. Foods such as fish, eggs, lean meat, dairy products, beans, lentils and other protein sources can all contribute to a balanced diet.
Iron, zinc and several vitamins are also involved in normal hair growth.
However, taking large quantities of supplements is unlikely to improve hair if there is no deficiency. In some cases, excessive supplementation can even cause problems.
A varied diet should therefore be the starting point. If significant hair shedding occurs alongside symptoms such as unusual tiredness, weakness or unexplained weight changes, a healthcare professional may recommend blood tests to check for issues such as iron deficiency or thyroid problems.
2. Avoid very restrictive diets
Rapid changes in food intake can sometimes affect the hair.
Significant weight loss, illness or severe calorie restriction can place physiological stress on the body and may contribute to a form of temporary shedding called telogen effluvium.
This does not usually happen immediately. Increased shedding can begin several months after the original trigger, which can make the cause difficult to recognise.
For anyone trying to lose weight, a gradual approach that continues to provide sufficient protein, vitamins and minerals is generally preferable to an extremely restrictive diet.
Hair growth is not the body’s highest priority during periods of nutritional stress, so inadequate nutrition can become visible through changes in the hair.
3. Be gentle with wet hair
Hair becomes more vulnerable to physical damage when it is wet.
Aggressive towel drying, repeated pulling with a brush or trying to force through tangles can increase breakage.
Instead, gently remove excess water and detangle the hair carefully, particularly if it is long or prone to knotting. Using a wide toothed comb or suitable detangling brush may help reduce unnecessary pulling.
It is important to distinguish hair breakage from hair loss at the follicle. Broken hairs may make the hair appear thinner, but this is different from conditions in which hair follicles progressively produce less hair.
4. Limit excessive heat and chemical damage
Hair straighteners, curling tools, bleaching and other chemical treatments can alter the structure of the hair shaft.
Occasional styling is unlikely to cause permanent hair loss by itself, but repeated high heat or aggressive chemical treatments can make hair dry, brittle and more likely to break.
Using lower temperatures where practical and allowing time between intensive chemical treatments can help protect the hair shaft.
Tight hairstyles can also be problematic when worn repeatedly. Styles that constantly pull on the roots may contribute to traction alopecia, particularly around the hairline.
If a hairstyle regularly causes scalp discomfort or tension, loosening it is a sensible precaution.
5. Look after the scalp as well as the hair
Healthy hair begins at the scalp.
Regular washing helps remove excess oil, sweat, dead skin and styling products. How often someone needs to wash their hair varies according to hair type, activity levels and scalp condition.
Dandruff and mild scalp irritation are common and can often be managed with appropriate shampoos.
Persistent redness, significant scaling, pain, sores or intense itching deserve more attention. Conditions such as seborrhoeic dermatitis, psoriasis and fungal infections can affect the scalp and may require specific treatment.
Scratching an irritated scalp can also damage the skin and worsen inflammation, so treating the underlying problem is preferable to simply tolerating persistent symptoms.
6. Manage stress and prioritise sleep
Stress does not automatically cause permanent baldness, but severe physical or emotional stress can sometimes contribute to increased shedding.
Telogen effluvium can occur following major illness, surgery, significant emotional stress or other substantial changes to the body.
Sleep and stress can also influence behaviours that affect general health, including diet and activity levels.
There is no specific amount of relaxation that guarantees healthy hair, but maintaining regular sleep, exercising and finding manageable ways to reduce sustained stress can support general wellbeing.
If hair shedding appears suddenly following a particularly stressful period, it may be worth discussing the timing with a healthcare professional.
7. Recognise male pattern hair loss early
Not all thinning hair can be prevented through lifestyle changes.
Male pattern hair loss, also known as androgenetic alopecia, is largely influenced by genetics and sensitivity to the hormone dihydrotestosterone, or DHT.
It typically causes gradual thinning around the temples, a receding hairline or thinning at the crown.
Because the underlying process occurs within the hair follicle, changing shampoo, increasing protein intake or taking supplements will not necessarily stop it.
For suitable men who are concerned about progressive male pattern hair loss, treatments such as finasteride can be considered following appropriate clinical assessment. Finasteride works by reducing the conversion of testosterone into DHT, helping to slow the process responsible for genetic hair loss.
It is not suitable for every person or every form of hair loss. It can also cause side effects, including reduced sex drive, erectile difficulties and ejaculation problems. UK medicines regulators also warn about depression and suicidal thoughts associated with finasteride, so these risks should be understood before treatment begins.
Lifestyle habits can support the condition of the hair, but genetic hair loss often requires a different approach.
8. Pay attention to sudden or unusual changes
The pattern of hair loss can provide useful clues about its cause.
Gradual thinning around the temples and crown is typical of male pattern hair loss. Sudden widespread shedding, bald patches or hair loss accompanied by scalp inflammation may indicate something different.
Possible causes can include alopecia areata, nutritional deficiencies, thyroid disorders, illness, medication or periods of significant physiological stress.
Hair loss should therefore not automatically be self diagnosed.
If hair starts falling out rapidly, develops in distinct patches or occurs alongside other unexplained health changes, speak to a doctor, pharmacist or dermatologist.
Consistency matters more than quick fixes
The hair growth cycle is slow, which means meaningful changes rarely become visible within a few days.
Products promising dramatic overnight growth should therefore be approached cautiously.
For general hair health, the most useful approach is usually less dramatic: eat a balanced diet, avoid unnecessary damage, keep the scalp healthy and pay attention when the normal pattern of hair growth changes.
It is also important to recognise the limits of lifestyle advice. Good nutrition and careful hair care can protect the condition of existing hair, but they cannot necessarily overcome genetic hair loss or treat an underlying medical condition.
Knowing the difference between everyday hair care and a problem that may require treatment can ultimately be just as important as the products used on the hair itself.
