%0 Journal Article %T Melatonin and cortisol profiles in late midlife and their association with age-related changes in cognition %A Birgitte Fagerlund %A Erik Lykke Mortensen %A Katja Linda Waller %A Kirsten Avlund %A Martin Lauritzen %A Poul Jennum %A Steen Gammeltoft %J Archive of "Nature and Science of Sleep". %D 2016 %R 10.2147/NSS.S75946 %K diurnal variation %K middle-aged males %K minimal cognitive impairment %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4731002/