Dutch and US researchers have concluded that a low dose of the hormone melatonin may help lower blood pressure. In a small study of 16 middle-aged men with untreated hypertension, the researchers administered 2.5 mg of melatonin 1 hour before bed each night for 3 weeks. Also, the patients took a placebo for 3 weeks.
The findings indicated that participants who received nightly melatonin supplements lowered their nighttime systolic blood pressure by ~6 mm Hg on average and their diastolic reading by ~4 mm Hg. No change was seen from taking 1 dose of melatonin, the researchers noted in Hypertension (February 2004).
While many states across our nation are engaged in political battles over the recreational use of marijuana, researchers have been busy studying the medical benefits of cannabidiol.
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