Body clock healing?

Does a person's body clock help them heal faster?

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How Sleep Heals the Body

Being asleep may seem like the ultimate form of inactivity, but those unconscious hours are actually a time of hard work for your body. Sleeping is one way that your body recovers from damage and protects itself against illness, says Michael Twery, PhD, director of the National Center on Sleep Disorders Research for the National Heart Lung and Blood Institute. "Sleep is one part of the whole rhythm of life," Twery says. "Whenever researchers go in and disrupt that rhythm, the biology becomes less efficient.

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NHS

Daytime wounds may heal faster

"Daytime wounds 'heal more quickly'," reports BBC News. Researchers discovered that skin cells' internal clocks allow them to respond more quickly to an injury inflicted when they are usually active, than during usual rest times.

The findings are in line with UK figures that show people who sustained burns injuries during the daytime healed more quickly than those injured at night.

The researchers carried out a series of experiments on skin cells, some from mice and some from humans. They looked at whether fibroblasts changed activity according to circadian rhythm (our internal body clock).

Fibroblasts, described in the media as the body's "first responders", are specialist cells that help repair damaged tissue.

The internal body clock regulates temperature and hormone activity. Feedback from this body clock is received by every cell in the body, which then synchronise to set their own cellular clocks.

The results of the experiments suggest fibroblasts can move more quickly to the site of a wound during daytime.

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