Other names: Forehead Lines; Frown Lines
There are two main types of forehead lines. There are the furrows that run horizontally across the forehead, often with a dip or curve in the middle. These lines or furrows are due to activity of the forehead muscle (frontalis muscle) which lifts the eyebrows when looking upwards and is also used to show facial expressions. The other type of forehead line is the vertical lines between the eyebrows (glabella lines) which form when we are angry or concentrating, this is due to contracting of corrugator supercilii muscles and procerus muscles.
When the skin is younger the lines are dynamic, which means they are only present when the muscle are being used and then they disappear once the muscles relax. As the skin ages the dynamic lines progress to become static lines, this means the lines are permanent and are present regardless of whether the muscles are contracting or not.
Lines and wrinkles are an effect of ageing on the skin and therefore have causes beyond our control for example individual genetics, gravity, medical skin conditions, pollution and stress. Factors that can be managed to help reduce the effect of ageing are reducing sun exposure, not smoking, having a well balanced diet and good skin care.
