Can you take too much acetaminophen (Tylenol)? People assume that this over-the-counter pain reliever is perfectly safe. But it is estimated that more than 50,000 emergencies occur every year because of this compound. Find out why and what to look out for. Melatonin is a natural sleep-inducing hormone. Can it also help control blood pressure? Speaking of dietary supplements: Is it possible that vitamin C and E supplements can help reduce the risk of Alzheimer’s disease? If so, what’s the right dose? Plus, the lines are open for your calls and questions: (888-472-3366).