That frustration will evaporate in 2016 when the new FasTracks East Rail Line will cut the duration of the 25-mile trip between downtown and the newly renovated Union Station to just 30 minutes.

BBC: Business trip: Denver

"The bottom line is clinicians must take all clinical parameters into account for the patient and prescribe the lowest dose for the shortest duration of time, " said Dr. Joseph Sanfilippo, vice chairman of reproductive sciences at Magee-Women's Hospital in Pittsburgh, in an e-mail to CNN.

CNN: Government panel: Hormone therapy 'not recommended'