It's pretty unlikely you'll be wandering Paris in shorts - especially since you're used to such warm weather -- the oldtimers count mid-May as the final frost date! (sometimes it works that way, sometimes it doesn't -- but they publish garden advice to protect your plants until mid-May).
Dihydrogen Monoxide (DHMO) is a colorless and odorless chemical compound, also referred to by some as Dihydrogen Oxide, Hydrogen Hydroxide, Hydronium Hydroxide, or simply Hydric acid.
DHEA is short for dehydroepiandrosterone, a hormone that your adrenal gland produces and secretes. The adrenal glands are small organs that are located above your kidneys; the main function of which s is to manage the release of hormones that in turn affect a variety of vital functions in the body.