There are many different factors that can cause the appearance of a double chin. When you notice a double chin in the mirror, your first thought is weight gain. This is a possibility, but there are other potential causes as well.
Aging is one of the major reasons why you might be developing a double chin. As you age, your skin loses some of its natural elasticity, causing it to droop. The extra sagging skin can collect at the bottom of your chin, giving you an unseemly bulge.
Your posture could also contribute to a double chin. If you’re leading a sedentary lifestyle and are often in front of the computer, the way you hold your neck through the day can have an impact on your chin. When you don’t use the surrounding muscles in your neck, the skin supporting those muscles loses its elasticity and contributes to the development of a double chin over time.
Genetics can play a big part. If you have a family history of low skin elasticity, then the development of a double chin is to be expected. Weight gain can also contribute to the development of a double chin. Even if you don’t go beyond your required calorie intake, if it’s only junk food and sugary food you’re eating, then a double chin is almost inevitable.