2. Dehydration
You’d think dehydration would make you look gaunt and wrinkly but it’s actually one of the most common, and easily treatable, causes of facial swelling. Drink more water!

3. Cushing Syndrome
Moon facies is one of the symptoms of Cushing Syndrome, which results from your body’s overproduction of the stress hormone cortisol. Moon facies is exactly what it sounds like — a swollen, round face. This isn’t something you just wake up with one day; it develops over time.