Certain medications can also cause a loss of appetite, like a bad joke that just isn't funny anymore. And, if you're feeling under the weather, your appetite might take a hike, too. It's like your body is saying, "Ugh, I'm too sick to eat, just bring me some chicken soup and let me sleep!"
But, did you know that depression can also cause a loss of appetite? It's like, your brain is so busy being sad, it forgets to send the "Hey, I'm hungry!" signal to your stomach. And, on the other hand, some people might experience increased appetite when they're feeling down, because, let's face it, emotional eating is a real thing. It's like, your brain is saying, "Hey, I'm sad, let's eat a whole pizza by myself!"
Appetite Loss | National Cancer Centre Singapore