`` We listen with our ears but hear with our brains , '' Gates says . In some people , gradual hearing loss may also be an early sign of types of dementia . ` ` We listen with our ears but hear with our ears , '' a source says . 30 million Americans have lost hearing ; dementia accounts for 1 in 10 by 2050 .
In some people , gradual hearing loss may also be an early sign of types of dementia . ` ` We listen with our ears but hear with our ears , '' a source says . 30 million Americans have lost hearing ; dementia accounts for 1 in 10 by 2050 .