Sorry im too lazy to go back and grab the melatonin quote. I know its hard to find melatonin haters in this pro-vitamin/supplement/nutrient/herb place. but i am one of those, I heard that it messes with hormones, causes irritability, mood changes, decreases blood flow, crazy nightmares and in some patients makes it hard to breathe. I had a horrible experience with it as it exacerbated some of my mental problems. I am now taking inderal, and I heard that melatonin takes away the bad effects of inderal, so I'm hoping the reverse would be true in that it will take away the bad effects of melatonin. I think melatonin should have a label which says 35 years of age and older. cause when young people take it, we dont really need it so it probably causes an overflow of some sort, wreaking havoc on your hormones and thus creating some physical/mental problems