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Red bars at night

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It is common to have red bars during sleep. Even though you are asleep, your body does not rest throughout the night. In normal sleep, it is only when the body has finished its nightly chores that both the body and the head rest and high blue bars can be seen.

Furthermore, many people have a skewed circadian rhythm that can also change over time. For example, over the seasons or hormonal cycles. This can sometimes lead to a higher level of stress during the night.

NOTE! If you have been drinking alcohol or have a fever, the bars will probably be red all night as the body needs to work all the time. What and when you eat in the evening also affects HRV but in what way is very individual.

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