The good news about coffee
There are no beans about it: caffeine is an upper. In fact, it's a quick-acting (legal) stimulant with an unmistakable effect on the body.
Thirty minutes after a good, strong cup of coffee, your resting metabolic rate increases by as much as 10%, your blood pressure climbs, your heart rate accelerates and your breathing speeds up. You will feel more awake, more energised.
And these effects are exactly the reason why many coffee drinkers opt for this beverage.
The hike in blood pressure and heart rate led scientists to believe that the caffeine in coffee could pose a heart risk. But a recent study by Harvard researchers found no significant increase in the risk of heart disease or stroke among men who drank up to four cups of coffee per day. Results in women were more or less the same.
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