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What’s Brewin’

JEZ scoops 10 things you need to know about that cup of Joe.

Bean smarts
A recent study in Nature Neuroscience found that drinking 200 mg of coffee (about the size of a “tall” at Starbucks) boosts your memory.

Hydration nation
Surprise! Coffee does not dehydrate you, says a study in scientific journal PLOS ONE—in fact, research shows that consuming caffeine before a workout can help you work out harder and longer.

Know your limits.
A study published in the Journal of Caffeine Research advises that healthy adults should limit caffeine consumption to no more than 400 mg per day—the equivalent of about two 8-oz. cups of java.

Half the caff
Preggers? Then chop that daily dose in half to less than 200 mg—one small cup o’ joe—per day, reports the March of Dimes.

Mental Breakdown
Last spring, the American Psychiatric Association recognized Caffeine Use Disorder as a health concern in need of additional research in the Diagnostic and Statistical Manual of Mental Health Disorders—hmm, reason to cut back?

Ticker tune-up
Japan’s National Cerebral and Cardiovascular Center found that people who drink coffee (and green tea) daily have a lower risk of stroke.

Healthier habit
Heavy coffee consumption, like four to seven cups a day, can cause problems, such as restlessness, anxiety, irritability and sleeplessness, according to the Mayo Clinic.

Happy sips
Harvard University researchers found after studying 200,000 folks for 16 years that a daily brew lowers risk of depression and suicide by 50 percent.

Find a filter.
It’s best to brew coffee with a paper filter to remove cafestol, a substance that causes increases in LDL cholesterol, say the experts at Harvard School of Public Health.

Risky business
Lower your risk of Type 2 diabetes when you consume a moderate amount of java, concludes study research funded by the National Institutes of Health.