I’m a doctor – avoid these habits if you don’t want grey hair

Most people associate grey hair with getting older – and that’s right. It’s a normal biological process that happens as we age.

Typically, it begins around the temples and slowly spreads over the scalp, reaching the back of the head last. Facial and body hair tends to follow later.

In society, however, grey hair is still treated with stigma, thanks to unrealistic beauty standards set for both men and women.  

In fact, many people find that it can be empowering to embrace the greys. 

Many celebrities have shown their grey roots or a full head of grey or white hair, including actors Emma Thompson, Jennifer Aniston and Jane Fonda.

Queen Letizia of Spain has made stunning public appearances with white hairs flowing loosely among her otherwise brunette locks.

While much of turning grey is due to genes, there are some common habits that could be unknowingly encouraging those first grey strands. 

Speaking to FEMAIL, NHS GP and Women’s Health Specialist Dr Deepali Misra-Sharp revealed what could be speeding up the greying process. 

‘Smoking, for one,’ said Dr Sharp. ‘Certain nutrient deficiencies, like low vitamin B12 or iron, as well as thyroid issues or autoimmune conditions, can also have an effect.

‘If greying happens suddenly or very early, it’s worth a quick check-in with your doctor. But for most people, it’s just part of the natural rhythm of ageing.’

There’s no single trigger for going grey – it’s usually a mix of things, some of which you can influence, and others you can’t.

As well as family history and the natural process of ageing, other factors may include stress levels, smoking, the lack of certain vitamins and health conditions. 

She also recommended avoiding habits such as using heat and dyeing your hair, if you’re worried about greys.  

There’s no proven way to bring colour back once a hair has gone grey, according to Dr Sharp. 

But you can take steps to keep your hair strong, healthy, and maybe slow down the overall process. 

These include making sure to eat well, including getting enough B vitamins, iron, zinc and protein. A varied diet really does matter for your hair.

You can also quit smoking, which can reduce oxidative stress and help your overall hair and skin health.

Making sure to keep stress in check, opting for gentle hair care – avoiding dyes and heat – and certain supplements (only after speaking to a doctor) can also help to slow down the greying process. 

‘When it starts really depends on your background and your genes,’ Dr Sharp said.

‘For example, people of White heritage often see their first greys in their mid-30s, those of Asian descent in their late 30s and individuals of African descent in their mid-40s.

‘If it kicks off earlier – say, before 20 for Caucasians, 25 for Asians, or 30 for people of African background – that’s classed as premature greying.

‘There’s also a rule of thumb many doctors use: by the time you hit 50, there’s a good chance about half your hair will have turned grey.’

Interestingly, the shade of your natural hair makes a difference in how soon you notice the change.

‘Grey strands are far more obvious against dark hair, so they often stand out earlier.

‘With lighter hair – like blond – it can take longer to spot, even if just as much pigment loss is happening underneath.’