There are certain things to which a man must resolve himself. Ageing, the weather, David Cameron’s tax affairs; all a waste of rage. Most would have you believe your hairline is equally unfixable, that all you can do is curse your father and watch your forehead inexorably towards your crown.

But that’s the kind of attitude that would have seen Hitler bunked up in London. With a more combative approach, you can win the war on thinning hair.

Why on earth why does my hair look so thin?

“Hair can begin to thin for a number of reasons,” says Aveda master barber Stelios Nicolou. “It can be hereditary or down to lifestyle or nutritional factors.”

So if it’s dad’s fault, what can I do about it?

“I always recommend speaking to your barber if you are concerned that you are thinning,” says Nicolou. “They should be able to suggest products to prevent and slow down the process as well techniques like massaging the scalp to stimulate and encourage growth.

“You can try a preventative product like Aveda Invati Men Shampoo, which works to thoroughly exfoliate the scalp to remove product build up and unclog pores – factors that can contribute to hair loss. The Invati Scalp Revitalizer works to thicken hair at the root.”

I notice more hair in the sink after I wash it. Should I stop?

“Thinning hair is more often than not genetic,” says Dan Gregory, of men’s grooming mecca Man Made London.

“So if you use an everyday shampoo, it’s totally fine. But don’t just grab your partner’s shampoo, especially if they have longer hair. Men and women with longer hair don’t tend to wash their hair as regularly as they don’t use as much product, so they need a stronger shampoo to cleanse a few days of natural oil build up. It can have the opposite effect if you use it everyday.”

Is a buzzcut my only option?

“It all depends on what type of thinning you have,” says Gregory. “If you have thinning at the crown you could opt for the swept back pomp. This creates height at the front and maintains hair towards the apex of the head, which you can use to sweep over the thinning area.