In fact, docs are urging people to walk in sexy heels to keep their feet healthy.

The claims are being substantiated by the finding that foot injuries are on a rise, courtesy ballet pumps and flip-flops, reports The Sun.

Although comfortable, flat shoes can cause severe foot pain, bunions, shooting pains in the shins, back aches and even arthritis.

Mike O'Neill, consultant podiatric surgeon and spokesman for the Society of Chiropodists and Podiatrists, said: "Over the last three to four years we've had a significant increase in the number of problems caused be wearing flat shoes such as ballet pumps or flip flops. I've seen three or four just in the last week."

If this is not enough for you, then here's another reason why you should ditch those frumpy flats -- heels boost sex life.

Surprisingly, Italian researchers have found women who wear a heel of one to two inches may have more fun between the sheets.

The body posture adopted while wearing heels improves the pelvic floor muscles, which help to create a mind-blowing climax.

O'Neill explains: "Very flat shoes worn for long periods of time can cause problems, and very high heels worn for long periods of time can also cause problems. The feet aren't designed to work in either. The ideal heel size is around an inch."

However, the expert adds: "Flats are fine to wear for a couple of days a week but the problem arises when people wear them for six months at a time."

Photograph: Parth Sanyal/Reuters