Sick children in today's society..

So I'm not by any means an "earthy crunchy" type of person. I believe in being healthy but I don't go overboard and i don't plan to with my daughter. I think mothers nowadays go overboard with the whole organic food and breastfeeding until the kid is a toddler and keeping kid locked in the house for its first few months of life. I truly believe that children are unhealthier now than they have ever been. I'm sure children got cancer years ago and children obviously got autism and things like that and maybe it just wasn't talked about as much but I feel like even with all these "natural" methods that parents try to take that kids today are worse than ever. I feel like in my moms generation you never heard about children dying of cancer as much as you do now. It's very sad but makes me wonder...are we just more aware now so we see higher numbers or are kids honestly just more sick in today's world? And are parents just going a little too overboard with certain things?