John Babuk News Today

Adults at high risk for the debilitating condition. cbs news chief medical correspondent dr. john babuk has this eye-opening look. >> reporter: its a delight to be here. >> reporter: pastor sam martz has been a minister for 61 years. listening is a job requirement. >> i have people i know that cant hear well. and they drop out of a conversation. well, as a minister, i cant do that. >> reporter: martz participated in a study out today showing hearing aids may reduce cognitive decline in older adu...