Compared to a younger adult, an older adult (age 65+) of the same body weight will generally:
Explanation
Aging reduces total body water, lean muscle mass, and (often) liver enzyme efficiency, all of which raise the BAC produced by a standard drink. Older adults are also more likely to be on medications that interact with alcohol and to have slower reflexes baseline. The server should pace conservatively for clearly older patrons and watch for impairment signs that may appear after fewer drinks than expected.
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