I will be 70 in December. I take no prescription drugs and I can't remember the last time I took an over the counter drug. My dental hygienist always asks me what drugs I take and I always tell her none. Since I've been seeing her for around a decade and we've talked health and diet she has never questioned my answer but I've never really thought about how few of the people to whom she asks that question answer "none", especially people my age. She also is aware that I walk the 2.5 miles to the office and back, not a common practice I'm sure.