I have an answer to ur question
For most people in developed countries, being hungry is the uncomfortable feeling you get if you skip lunch. But it’s very different if you’re one of the hundreds of millions who don’t get enough to eat every single day. Being malnourished means you don’t have the strength or energy to do even the simplest tasks. Hunger makes you weak, tired and unable to concentrate. Work or study of any kind is exhausting. All you can think about is when you are going to eat.