Deep furrows
Deep forehead wrinkles are pronounced expression lines that develop over time due to repeated facial muscle contractions, natural aging, and loss of skin elasticity. These wrinkles, also known as dynamic wrinkles, become more noticeable with age and can affect the forehead's appearance, making it look aged and strained. Sun exposure, dehydration, and stress can also accelerate their appearance. In addition to being a visible sign of aging, deep forehead wrinkles can influence how we perceive our emotions, giving an appearance of tiredness or worry.