Does regular ironing of clothes really increase its lifespan?

Yes, Steam ironing of clothing softens and maintains the original state of the fabrics. It can help to improve their condition and extend their life. Some fabrics extend out after you wear them, changing the garment's original form. By ironing clothes and dress fabrics, you can keep their shape and maintain them clean and fresh for longer. Over time, sweater cuffs and even knitted jerseys lose their shape. 

The fibers are recovered to their latest structure by steam ironing the clothing. When ironing, use parallel strokes instead of circular ones to avoid straining fabrics and changing the garment's shape. The clothing will keep shape if creases, wrinkles, collars, and cuffs are ironed properly.