Why Do I Get So Tired the Week Before My Period?

By Lindsay Kahl

Each woman's body contains hundreds of different kinds of hormones, and three play a major part during the menstrual cycle. The levels of testosterone, estrogen and progesterone go up and down throughout your cycle, and this has a major effect on how your body functions.

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Each woman’s body contains hundreds of different kinds of hormones, and three play a major part during the menstrual cycle. The levels of testosterone, estrogen and progesterone go up and down throughout your cycle, and this has a major effect on how your body functions.

Progesterone

In the week before your period, the level of progesterone in your body rises. Progesterone has a sedating effect, which may make you feel listless and fatigued.

Estrogen

During this time in your cycle, estrogen levels decrease. Declining estrogen levels lead to bursts of another hormone called noradrenaline, which can keep you from reaching REM sleep.

Testosterone

Testosterone levels also decline leading up to your period, lowering energy and endurance.

Sensitivity

At this point in your cycle, you are more sensitive to sounds, smells, and pain, which may have an effect on your sleep patterns.

Tips

Try using a fan or sound machine during the night to block out distracting sounds. Even though you’re tired, try to avoid caffeine; it can make premenstrual symptoms worse.

References

About the Author

Lindsay Kahl has a bachelor's degree in psychology and a master's degree in social work. She is a licensed master social worker in the state of New York, and has several years of experience in the mental health field.

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