A previous study, published in the Annals of Internal Medicine, found that besides making us feel a little wired, drinking three cups of coffee a day could add years to our lives.
Coffee improves life expectancy, reducing the risk of death by all causes, even with moderate consumption.
Coffee may be a essential part of your day, yet you should be cautious and not over enjoy.
That doesn't mean that any and all coffee is bad for your heart, however. Those who drank four cups of coffee had a 24% lower risk of death from diabetes than people who didn't drink any coffee. Astrid Nehlig, a research director at France's National Institute of Health and Medical Research in a statement said, "It is hard to calculate, but my feeling is that drinking coffee possibly adds another couple of years to your life".
Increased focus and alertness are credited as being partly the reason.
In yet another study from Australian researchers, it was found that there was an optimum amount of coffee that was beneficial.
In Australia, one in six people are affected by cardiovascular disease. According to the World Health Organization (WHO), in Australia, one in six people is suffered from cardiovascular disease, which is a major cause of death.
Researchers discovered that keeping coffee consumption under six cups per day was unlikely to affect heart health.
Similarly, a study from the U.S. found that participants who consumed a cup of coffee per day were 12 per cent less likely to die compared to those who didn't drink coffee.
She further added that according to the study of the above data, to maintain a healthy heart and high blood pressure, people must start using the limit of coffees to less than a six cups a day. Those with the caffeine-metabolising gene were not able to drink more and avoid health risks, the study found. People with this gene could metabolize coffee faster than others.
"Knowing the limits of what's good for you and what's not is imperative", she said.
"As with many things, it's all about moderation; overindulge and your health will pay for it".
The chemical acrylamide, which is found in coffee as a byproduct of the brewing process, has also been linked to cancer (it's most likely not risky in the amounts found in coffee, though).
A preliminary study published in March 2019 found coffee and tea drinkers had increased risks for developing lung cancer regardless of whether they smoked or not.
"Risk of cardiovascular disease increases with high BP, a effect of excess caffeine consumption".