HUN 2201 Lecture Notes - Lecture 18: Caffeine, Blood Pressure, High-Protein Diet
Document Summary
Body water: more than half your weight, adult male: 60, adult female: 50, newborn infant: 70-75% 2/3 inside of cells and 1/3 is outside cells. Decreases with age: travels by osmosis, more muscle = more body water, what goes in equals what goes out. Functions of water: carrier of nutrients and wastes, maintain the structure of large molecules, participates in metabolic reactions, solvent for minerals, vitamins, aa, glucose and more, maintains blood volume, aids regulation of body temperature, lubricant and cushion. Fluid needs: most people need about 8 cups (64 ounces, some food have very high fluid content, fruits and vegetables, needs increase with, exercise, hot climate, fever. 1: the hypothalamus of the brain regulates thirst and initiates drinking when blood becomes very concentrated, thirst lags behind lack of water, many people lose their ability to sense thirst as they age.
