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== Circadian structure ==

== Circadian structure ==

[[File:Circadian human.png|thumb|Typical circadian timings of physiological processes]]

[[File:Circadian human.png|thumb|Typical circadian timings of physiological processes]]

The circadian rhythm regulates a range of physiological processes that controls sleep-wake cycles. These rhythms are synchronized to [[Wikipedia:Local mean time|local solar time]] when they are stabilised.

The circadian rhythm regulates a range of physiological processes that controls sleep-wake cycles. These rhythms are synchronized to [[Wikipedia:Local mean time|local solar time]] (rather than clock time) when they are stabilised. In some regions, local clock time can differ substantially from the solar time, and additional consideration is required to correctly plan circadian management measures.

{| class="wikitable"

{| class="wikitable"

|+Typical circadian markers

|+Typical circadian markers

|}

|}

== Methods ==

==Methods==

=== Dark period ===

===Dark period===

=== Daylight lamps ===

===Daylight lamps===

=== Food ===

===Food===

== Examples ==

==Examples==

=== Late core ===

===Late core===

=== Early core ===

===Early core===

=== Night shift ===

===Night shift===