Drinking coffee daily - about 3 to 4 cups containing up to 400 mg caffeine - is generally safe and may offer surprising health perks.

Health Benefits
Numerous studies link moderate coffee intake to lower risk of type 2 diabetes, Parkinson’s disease, Alzheimer’s, liver disease, and certain cancers, while overall mortality rates drop by up to 15–30%. Coffee’s antioxidants and anti-inflammatory compounds support heart health, metabolic function, and weight control . One long‑term study showed women drinking ~315 mg caffeine daily aged more healthily by 2–5% by their 70s.

Cognitive & Mood Effects
Caffeine enhances alertness, reaction time, focus, and may reduce depression and suicide risk . In older adults, morning coffee can improve memory retention and attention into the afternoon.

Potential Downsides
Too much caffeine may trigger anxiety, jitteriness, heart palpitations, or insomnia - especially if consumed late in the day . Daily intake can cause dependence and withdrawal symptoms like headaches and fatigue if stopped abruptly . It may also hinder absorption of iron, calcium, magnesium, and zinc; spacing supplements at least an hour apart is recommended. Unfiltered brews (e.g. French press or espresso) may raise cholesterol due to diterpenes in oils.