2nd Post 24 hour fast

I am sixteen hours into my 24 hour fast.  I was hungry when I woke up, but it wasn't unbearable.  It has started to get much more difficult though.  My stomach is empty and growling at me and drinking water isn't cutting it.  I don't have to be anywhere in the next 8 hours where there will be fresh food so hopefully that will drive away any temptations to eat.  The biggest difference I've noticed during my fast is my lack of energy.  I have been so tired all day. I can't believe that people still survive with little to no food everyday like this. Staying positive!