The Reason You Can’t Eat Something

 11.You Take Medication
Some medicines can affect your appetite. These include some that are used to treat depression or mood disorders, along with certain antihistamines, antipsychotics, and corticosteroids. Tell your doctor if you’re hungrier after you start a new medication. But don’t stop taking it on your own.

12.You Don’t Get Enough Sleep
Lack of sleep can change the balance of hunger hormones (leptin and ghrelin) in a way that can make you want to eat more. It can also make you more likely to reach for snacks that have more calories and more fat to satisfy that urge.