From Pam Lunn
Gaia Vince writes that legal highs are “a battleground between those who see the use of mind-altering drugs as a human right and those who think it is plain wrong” (30 September, p 40).
There is another, to me more interesting, issue: what is it that causes some people to want to mess with their brain chemistry, while others show no inclination whatsoever to do so? As someone in the latter category, who has never been remotely interested in recreational drugs, I would be glad to see some well-founded and convincing explanations of this.
Kenilworth, Warwickshire, UK
