Dog
Dog ownership correlates with cardiovascular outcomes significant enough to draw endorsement from the American Heart Association. A Swedish study tracking 3.4 million participants found dog ownership associated with 33 percent reduced mortality risk for individuals living alone. The mechanisms are multifactorial: enforced physical activity from mandatory walks, stress reduction through companionship, and the establishment of routines that structure otherwise chaotic human existence.
Dogs also provide measurable benefits to mental health. Owners report lower rates of depression and anxiety. The elderly with pets demonstrate slower cognitive decline. Children raised with dogs develop stronger immune systems and fewer allergies. The dog, it appears, is good for nearly every human system.
Beer
The epidemiological literature on beer consumption presents a J-shaped mortality curve that confounds simple interpretation. Moderate consumption, defined as one to two units daily, correlates with reduced cardiovascular events compared to complete abstention. Peer-reviewed meta-analyses suggest light beer drinkers may live slightly longer than teetotallers, though researchers continue debating whether this reflects causation or confounding lifestyle factors.
However, the curve turns sharply upward at higher consumption. Liver damage, neurological impairment, increased cancer risk, and a catalogue of social harms accumulate with excessive use. The World Health Organisation notes that alcohol contributes to three million deaths annually, a statistic that significantly undermines beer's position in any health-focused comparison.
VERDICT
Beer offers narrow potential benefits within strict consumption limits. Dogs offer broad health benefits that scale positively with engagement rather than negatively with excess.