Here is the setup of these studies: Take people who have just had something very bad happen to them, like a motor vehicle accident or a rape, and within a few hours or a day or two at most, flip a coin and put half these people on a beta blocker and half on an inactive substance that looks the same (i.e. placebo).

CNN: Have you heard of a heart drug that also helps PTSD?

Earlier my companion, a spa rookie, was led to his first treatment wearing a robe, flip-flops and a trepidatious half-smile.

FORBES: Magazine Article

The spring-heeled winger raced over from 10 metres inside his own half and celebrated in typical fashion with an acrobatic back flip.

BBC: Australia 25-17 South Africa