Controversy regarding the metabolism and excretion of d-lactate in mammals exists in the literature. Conventional opinion is that d-lactate is not well metabolized by mammals and is excreted mainly in the urine (11,13,21â25).
Around three million parents still have their grown-up children living with them at home, a report revealed yesterday. The survey shows the average age of the children, dubbed âfailed fledglingsâ, is 27 â although some are in their forties.
As People Age, Old Age Moves Back. It's no surprise that the older people get, the longer they think it takes for a person to reach old age: 1  On average, adults between the ages of 30 and 49 think old age begins at 69. 2  People who are currently 50-64 believe old age starts at 72.