This Is Much Coffee Should You Drink To Lower Stress, Study Reveals

A large new study suggests that about only two to four cups of coffee per day can reduce stress levels as well as lower the risks of developing anxiety and depression. Researchers from Fudan University in China found that moderate coffee intake is linked to lower stress levels, while both very low and very high consumption don’t offer the same benefit.Drinking more than four cups may start to increase stress and anxiety, likely because caffeine stimulates the nervous system and raises stress hormones.Scientists believe this works like a “J-shaped curve”: a little caffeine can improve mood, alertness, and resilience to stress, but too much can overstimulate the body and make stress worse. Supporting research also shows that high caffeine intake is linked to higher perceived stress and anxiety symptoms.At the top end of the scale, drinking five cups or more each day was associated with a higher risk of mood disorders – so it seems it is possible to overdo the buzz."J-shaped associations were identified between coffee consumption and mental disorders, suggesting that a moderate intake of coffee might be beneficial for mental health," write the researchers in their published paper.Caffeine Can Recover Memory Loss From Lack of SleepIn this animal study, scientists at the National University of Singapore have found that sleep-deprived mice struggle to recognize other mice however, mice that were given caffeine for a week before being being sleep-deprived performed much better on tests and did not show the same memory loss.Additionally, when caffeine was directly applied to brain tissue from sleep-deprived mice, it improved communication between brain cells in this region -- suggesting that caffeine doesn’t just mask tiredness but may also help repair disrupted brain activity.NUS physiologist Lik-Wei Wong explained: "Sleep deprivation does not just make you tired. It selectively disrupts important memory circuits."We found that caffeine can reverse these disruptions at both the molecular and behavioral levels. Its ability to do so suggests that caffeine's benefits may extend beyond simply helping us stay awake.""Our findings position the CA2 region as a critical hub linking sleep and social memory. This research enhances our understanding towards the biological mechanisms underlying sleep-related cognitive decline. This could inform future approaches to preserving cognitive performance," NSU neuroscientist Sreedharan Sajikumar added.Based on these results, the study concluded that sleep deprivation increases signaling linked to adenosine, a chemical that promotes sleep but can also weaken memory circuits. But with moderate amounts of intake, caffeine appears to block this effect and help the brain maintain normal functionWhile the discovery offers a clearer understanding of how sleep, memory and caffeine are connected, the findings are based on mice and more research is needed to confirm if the same benefits apply to humans.How Much Coffee Should You Consume?Due to how much caffeine can actually affect one’s body, experts recommend 400 milligrams only per day. That is about four cups, it is also better to consult a doctor about this as caffeine sensitivity is different for people. Some people are more sensitive to caffeine than others.How you react depends on your health, what medicines you take, and how fast your body processes things. Too much caffeine can cause problems, so it's important to pay attention to how you feel and not go overboard. Here is what happens to your body when you drink too much caffeine daily.

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