Premature greying of hair is a condition that can strike as early as in one’s twenties. While it has long been associated with the natural ageing process, recent scientific studies have shown that lifestyle factors can significantly contribute to this phenomenon.
Smoking is one of the most prominent lifestyle choices linked to early greying. A 2013 study by the University of Jordan found a substantial relationship between smoking and the onset of grey hair before the age of 30.
The harmful chemicals in tobacco smoke are believed to cause oxidative stress, leading to damage in hair follicle melanocytes, the cells responsible for hair pigment.
Dietary habits also play a crucial role. Nutritional deficiencies, particularly a lack of vitamins B12, D3, calcium, and minerals like copper, iron, and zinc have been correlated with premature greying.
These nutrients are vital for melanogenesis, the process by which melanocytes produce melanin, the pigment that gives hair its colour.
Studies have reported lower levels of these nutrients in individuals experiencing early greying compared to those without such issues.
Nutritionist Nmami Agarwal shared an Instagram post earlier suggesting that diet is essential for one’s hair health. She advised having foods that have high amounts of folic acid (dark leafy vegetables), vitamin B12 (egg yolk and dairy products), copper (sesame seeds, cashews, almonds, red meats and whole grains) and zinc (dry fruits and seeds).
Stress, too, has been implicated in the greying process. Although no direct link has been established between stress and hair greying, increased oxidative load due to psychological stress suggests that emotional factors may influence hair pigmentation.
Furthermore, poor sleep and chronic dehydration are additional factors that may exacerbate the risk of premature greying, as they can impact overall health and, consequently, hair vitality.
While genetics play a significant role in determining when and how quickly one’s hair turns grey, these lifestyle factors offer actionable insights into how people might delay greying signs.
Rohit Malhotra is a medical expert and health journalist who offers evidence-based advice on fitness, nutrition, and mental well-being. His articles aim to help readers lead healthier lives.
