One study suggests that it is acceptable to drink 25 cups of coffee a day. This is not it.

Some news about coffee is contradictory. This news seems simply irresponsible.

A study by the British Heart Foundation examined the relationship between coffee consumption and stiffening of the arteries. The researchers found that drinking up to 25 cups of coffee a day does not increase the risk of stiffness in the arteries, which can increase the risk of heart attack or stroke.

"Hooray!" And "I can not stop shaking!" Is the way we badume that people who drink 25 cups a day have responded to this news.

Of course, it is comforting for coffee lovers to learn that their habit – even if it tends to be excessive – is safe for the heart. But does this mean that everyone should increase their consumption by more than 20 cups? Not enough.

"In my opinion, it's a rather silly and irresponsible story," HuffPost told David Katz, director of the Yale-Griffin Prevention Research Center and author of "The Truth About Food." "Imagine a study showing that the current use of a radial arm saw does not increase the frequency, for example, of migraines. Would this prove the perfect safety of radial saws? If you think so, I know people with missing fingers who you should talk to.

Katz's argument, of course, is that the fact that something is considered safe for a (very) specific reason does not make it globally safe. Coffee and caffeine, despite all their health benefits, also had a potentially negative impact. The more you consume, the more vulnerable your body becomes.

"There are many more reasons to worry about a host of other dose-related effects, from elevating blood pressure to raising the frequency." cardiac dysrhythmias, "said Katz. "More importantly, extreme coffee consumption is likely to be badociated with non-heart related (or at least not directly related) lesions, such as insomnia, agitation and possibly a range of other metabolic effects. , from microbiome to bone density.

Caffeine is the most used medication in the world and is usually safe at a daily dose of 400 milligrams – between three and four cups – or less, according to the American Psychological Association. Beyond that, however, there is a potential for problems, including the symptoms described by Katz as well as others like headaches and anxiety.

This is because caffeine is a stimulant and research suggests that people with anxiety disorders may be more sensitive to this substance. For people who suffer from panic attacks, the potential side effects of too much caffeine may seem well known.

L. Kevin Chapman, a clinical psychologist in Louisville, Ky., Specializing in anxiety disorders and cognitive behavioral therapy, described sensations similar to those of US News and World Report in September.

"Caffeine acts as a stimulant and mimics the physical symptoms badociated with anxiety, such as heart palpitations, agitation, chest tightness, hot flashes and other symptoms ", did he declare. Caffeine can also trigger a stress hormone that can also cause anxiety-like symptoms, according to US News and World Report.

So, said Katz, this news is really exciting only for a very small number of people for a very specific reason.

"This study does not prove that 25 cups of coffee a day are surely safe," said Katz. "This simply shows the absence of a very specific disadvantage in a population where some have chosen to drink as much, possibly suggesting an extreme tolerance that we do not appreciate."

Think we'll stick to our one to three cups a day right now.