Avoid taking valerian at the same time as medication that can cause drowsiness, as the effects could be additive, adds Massachusetts General's Dr. Ulbricht.
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In 1960, the post of president was abolished in East Germany following the death of President Wilhelm Pieck and Walter Ulbricht became head of an all-powerful new Council of State.
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As for whether it works for sharpening the brain or minimizing damage from a stroke "the jury is out, " says Catherine Ulbricht, co-founder of Natural Standard Research Collaboration, a Cambridge, Mass.