1. Does Caffeine Affect the Heart

One research study found caffeine consumption does not increase abnormal heartbeats associated with an increased risk of the most common heart rhythm disturbances.

2. What Are the Pros & Cons

The research found that caffeine enabled about 10-15% more steps per day but also averaged 35 minutes less sleep per day. Less sleep is a mortality risk factor and can increase the number of irregular ventricular heartbeats.

3. Coffee & Blood Pressure

Drinking 2 or more cups of coffee per day was associated with twice the risk of cardiovascular death in people whose blood pressure was higher compared with those who did not drink any coffee.