Key result
Advanced age in healthy adults was associated with a more advanced phase of rectal temperature rhythms compared to young adults, with a significant inverse correlation between age and acrophase time.
Why the study?
Do body temperature rhythms differ between healthy elderly and healthy young adults?
Cross-Sectional (n=14)
Do body temperature rhythms differ between healthy elderly and healthy young adults?
The study demonstrates that the phase of body temperature rhythms is more advanced in healthy elderly individuals compared to young adults, which may explain early sleep onset and awakening in the elderly.
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May explain early sleep timing in aging; leaves open causal mechanisms and need for longitudinal confirmation.
Nakazawa et al. (1991) conducted a cross-sectional in Healthy (n=14). Advanced age (Elderly) vs. Young adults was evaluated on Phase of rectal temperature rhythms. Advanced age in healthy adults was associated with a more advanced phase of rectal temperature rhythms compared to young adults, with a significant inverse correlation between age and acrophase time.
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