Shahmalak has also written about the impact of work stress and pressure on hair colour and density, highlighting the example of US President Barack Obama and leading UK politicians whose lifestyles have been reflected in their looks. Writing in the Huffington Post he concluded: "These very visible physical manifestations of stress are not simply a gift to the world's picture editors, and hair transplant surgeons like myself. They are an outward indicator of the internal difficulties of leadership in the modern world. And Obama is not the first powerful man – and it is mainly men affected in this way – whose hair has suffered and signalled the strains of his job."Shahmalak, Dr Asim. "Barack Obama's greying hair tells the story of his presidency so far" Huffington Post. 16 November 2012. Retrieved 22 November 2012.
