A dotFIT answered. The half-life, which is the time required by the body to metabolize or inactivate 1/2 of a substance activity, for caffeine (doses lower than 4.50mg/lb) ranges from 2.5 to 10hrs. Meaning, caffeine has little to no pharmacological effect after this time but may still be present in small amounts in the body.
Brewster (CDP), Massachusetts. Brewster is a census-designated place (CDP) in the town of Brewster in Barnstable County, Massachusetts, United States. The population was 2,000 at the 2010 census, out of 9,820 in the town of Brewster as a whole. Geography
The town is represented in the Massachusetts Senate by Robert Hedlund as a part of the Plymouth and Norfolk district, which includes the towns of Cohasset, Duxbury, Hingham, Hull, Marshfield, Scituate and Weymouth. The town is home to the First Barracks of Troop D of the Massachusetts State Police.