Coffee Seems To Have A Surprising Effect On Ageing And Longevity

Yes, too much coffee can harm us; a caffeine overload can cause jitters, insomnia, and, in the long-term, possibly even heart health issues. 

But what is “too much”?

Speaking to HuffPost previously, Dr James Udelson, chief of cardiology at Tufts Medical Centre, said, “Three to four cups of coffee per day has been shown to be safe for most people and not associated with adverse effects on cardiovascular health or health in general”. 

And if you stick under that limit, some research suggests coffee...