publication . Article . 2012

Aging, health behaviors, and the Diurnal rhythm and awakening response of salivary cortisol

Heaney, Jennifer L. J.; Phillips, Anna C.; Carroll, Douglas;
Open Access English
  • Published: 01 Jan 2012
  • Country: United Kingdom
This study compared the awakening response and diurnal rhythm of cortisol in young versus older adults in relation to health behaviours. Older adults displayed significantly reduced cortisol upon awakening, a lower cortisol awakening response and a flatter diurnal profile represented by a reduced area under the curve and cortisol slope. There was also a significant interaction of age, cortisol and diet; younger adults with a higher fat and lower fruit and vegetable intake exhibited the flattened diurnal cortisol phenotype of the older adults.
free text keywords: BF Psychology
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