Caffeine content can range from as much as 160 milligrams in some energy drinks to as little as 4 milligrams in a 1-ounce serving of chocolate-flavored syrup. Even decaffeinated coffee isn't completely free of caffeine. Caffeine is also present in some over-the-counter pain relievers, cold medications, and diet pills.
wren. noun. 1  Any of various small brownish songbirds of the family Troglodytidae, having rounded wings, a slender bill, and a short, often erect tail. 2  All species but one, which is Eurasian, are found only in the Americas. 3  Any of various similar unrelated songbirds.
WREN is founded on a very simple premise: each locality can transform energy from an individual cost to a collective asset. In every locality, over Â£1,000,000/year is spent collectively by every 1,000 people on energy for lighting, heating and transport.REN is founded on a very simple premise: each locality can transform energy from an individual cost to a collective asset. In every locality, over Â£1,000,000/year is spent collectively by every 1,000 people on energy for lighting, heating and transport.