There are three reasons for the formation of double chin: fat accumulation, loose skin and low head.
1, let's talk about the first kind, fat accumulation, that is, the double chin formed by excessive meat accumulation, which is obviously what you eat.
2. Second, the double chin formed by loose skin means that with the increase of age and the loss of collagen, the skin will slowly relax and age, forming a double chin.
3. Third, it is because the time spent watching computers and playing mobile phones at work is long, and it is easy to turn the original baby fat into a double chin when the head is lowered for too long.