High CPM's due to 'trigger' words

I'm not using anything crazy by the way like guns, sex and drugs. I'm not talking about the obvious ones.

I'm referring to things like claims or other things:

"Fall asleep faster"
"Get more energy"
"Look and feel better"
"Works in 15 minutes or less"

Can anyone in health and beauty confirm a correlation to inflated CPMs with certain keywords in ad text?

If not in the ad text how about the creative itself?