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The search for a cancer cure remains elusive but researchers say there is reason for hope.

While there are still rising numbers among certain types of cancer, the number of overall cancer deaths has dropped and researchers say some cancers could be eradicated altogether in years to come. We hear from Dr. Samuel Waxman, an expert in the field of cancer research and treatment.

There are more than five million people in the United States and millions more worldwide suffering from alzheimer’s, a degenerative brain disease that drains the patient’smemory and places an untold burden on caregivers. There have been hundreds of failed trials in the search for a cure, or even an effective treatment.But there are several new medications that researchers say look promising.

Our experts tell fill us in on where we stand with alzheimer’s research.