By the age of 65, what fraction of Americans are expected to experience hearing loss that affects communication?

The correct answer is based on statistical data regarding the prevalence of hearing loss among older adults. Research indicates that by the age of 65, approximately 25% of Americans will experience hearing loss that is significant enough to impact their ability to communicate effectively. This aligns with the choice indicating a fraction of 1 in 4.

This prevalence rate is important to note because it underscores the significance of hearing loss as a public health issue among older populations, emphasizing the need for appropriate interventions, awareness, and support systems to manage communication challenges effectively. Additionally, understanding these statistics aids healthcare professionals, including environmental health specialists, in planning for resources and services that cater to the needs of this demographic.

Other options represent higher or lower estimates that do not accurately reflect the latest research findings regarding the prevalence of hearing loss in this age group.