A sedating effect

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Other studies show that valerian reduces the time it takes to fall asleep and improves the quality of sleep.

Unlike many prescription sleeping pills, valerian may have fewer side effects, such as morning drowsiness.

But not every study has found that valerian had a positive effect.

Valerian has been used to ease insomnia, anxiety, and nervous restlessness since the second century A. Some research -- though not all -- suggests that valerian may help people with insomnia.

It has also been suggested to treat stomach cramps.

Last modified 30-Oct-2014 14:00