British Medical Journal - Timing of onset of cognitive decline: results from Whitehall II prospective cohort study University College London researchers found a 3.6% decline in mental reasoning in women and men aged 45-49. Tests of memory, reasoning, vocabulary, and phonemic and semantic fluency, assessed three times over 10 years.
Decline in cognitive test scores over 10 years (% change=change/range of text×100) as function of baseline age cohort in men and women, estimated from linear mixed models. P values denote test for linear trend across age categories, derived by entering them as continuous variable Results...Please read more from:
