caffeine

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How Much Coffee You Drink May Be Down to Your Genes
How Much Coffee You Drink
May Be Down to Your Genes
study says
Aug 26, 2016 2:50 PM CDT

How Much Coffee You Drink May Be Down to Your Genes

One gentetic variation may control how effective it is, say researchers

(Newser) - Can't stop at just one cup of joe to wake up? You might be missing a certain variation of the PDSS2 gene, which instructs our bodies to break down caffeine more slowly. Researchers in Scotland report in the journal Scientific Reports that they interviewed and examined the DNA of...

Weird Study Says You Shouldn't Drink Coffee After a Concert

It could slow your ears' healing: scientists

(Newser) - Scientists who were apparently in desperate need of a research topic have a tip for concert-goers: Don't drink coffee for a while afterward. Based on their new study , it could hurt your hearing. How does one go about studying such a thing? Well, scientists at the McGill University Auditory...

Couple's Caffeine Intake Linked to Miscarriage

Multivitamins in the weeks before, after conception also play a role

(Newser) - For all the couples out there trying to do everything just right in the weeks leading up to conception, scientists are now suggesting that not just women but men, too, cap their caffeine consumption at two drinks per day. In other words, healthy sperm are very much a part of...

Caffeine Won't Make Your Heart Skip a Beat

Doctors should rethink their recommendations on coffee, says study

(Newser) - Add one more study to the "coffee is good for you" file. Contrary to the long-standing belief that caffeine may cause heart palpitations that can lead to heart failure, new research in the Journal of the American Heart Association suggests the claim is, well, rubbish. Researchers surveyed 1,388...

Man Drank Himself to Death—With Caffeine

It's the first known case to be reported in Japan

(Newser) - When an unidentified man in his 20s in Kyushu, Japan, died suddenly and inexplicably in the fall of 2014, police ordered an inquest into the cause of his death. Now Dr. Shinichi Kubo, a professor of forensics at Fukuoka University, is announcing that it appears to be the country's...

Pregnant Moms Won't Hurt Kids' IQ With Coffee

One or 2 cups a day not linked to lower intelligence or behavioral issues: study

(Newser) - Pregnant women who can't resist a single morning cup of joe don't have to worry about their caffeine habit when it comes to their child's future smarts, per a new study in the American Journal of Epidemiology . Researchers at Nationwide Children's Hospital in Ohio found that...

Having a Single Energy Drink May Pose Health Risks

Mayo Clinic finds spikes in blood pressure and a stress hormone

(Newser) - A single can of an energy drink packs quite a wallop, causing potentially worrisome spikes in blood pressure and in a stress hormone that's a cousin to adrenaline, say researchers at the Mayo Clinic. Reporting in the journal JAMA , the Mayo team recruited 25 healthy adults for the study...

Mom's Caffeine Habit Contributed to Her Death

Pathologist says excessive fluoxetine intake was exacerbated by caffeine

(Newser) - A British mother's caffeine habit apparently helped put her in an early grave. Victoria Lane, who'd struggled with mental health issues since surviving a bad car accident at 16, battled anxiety and paranoia. In an attempt to appease the dry mouth the prescription antidepressant fluoxetine gave her, her...

Caffeine at Night Does More Than Keep You Up Late
Caffeine at Night Does More Than Keep You Up Late
in case you missed it
Sep 20, 2015 7:30 AM CDT

Caffeine at Night Does More Than Keep You Up Late

Scientists find that espresso 3 hours before bedtime delays the circadian clock

(Newser) - It's no news flash that consuming caffeine close to bedtime can interfere with sleep. But scientists at the University of Colorado Boulder report in the journal Science Translational Medicine that caffeine has another physiological impact on sleep by delaying the body's natural surge in the production of the...

Parents Sue Over Son's Caffeine Powder Death

Logan Stiner overdosed days before graduation

(Newser) - Prom king Logan Stiner died of a caffeine overdose just days before his high school graduation last May, and now his parents are suing. Kate and Dennis Stiner have filed a wrongful death lawsuit against companies that manufacture and distribute caffeine powder, including Amazon.com and Hard Rhino. "...

Introverts, Avoid Coffee Before Big Meetings
Introverts, Avoid Coffee Before Big Meetings
author says
Oct 21, 2014 6:17 PM CDT

Introverts, Avoid Coffee Before Big Meetings

It might do way more harm than good, says author

(Newser) - Introverts preparing for a big meeting might think that coffee beforehand will give them a needed jolt in performance. In fact, the opposite may be true, reports New York mag. The insight comes from a newly released book by psychologist Brian Little, who writes in Me, Myself, and Us that...

FDA Studies Caffeine Powder After Teen's Death

Agency says it might take regulatory action

(Newser) - A few weeks before their prom king's death , students at an Ohio high school had attended an assembly on narcotics that warned about the dangers of heroin and prescription painkillers. But it was one of the world's most widely accepted drugs that killed Logan Stiner—a powdered form...

Prom King Killed by Caffeine Overdose
 Prom King Killed by 
 Caffeine Overdose 
IN CASE YOU MISSED IT
Jul 6, 2014 7:00 PM CDT

Prom King Killed by Caffeine Overdose

Extremely potent caffeine powder killed teen just before graduation

(Newser) - An 18-year-old Ohio prom king died just a week before graduation, and as WKYC reports, toxicology results reveal an unlikely culprit in his death: caffeine poisoning. Logan Stiner of LaGrange had apparently ingested caffeine powder and died after suffering an irregular heartbeat and seizures. The top student and star wrestler...

School Stops Giving Kids Mountain Dew Before Tests

Principal had read it was beneficial

(Newser) - No more pre-test infusion of sugar and caffeine for these kids. A grandmother complained when she learned that children at a Florida elementary school were getting a dose of Mountain Dew before taking standardized tests, Florida Today reports. They received three tablespoons of the soda, along with some trail mix,...

Military's Coffee Alternative: Shocks to the Brain?

Air Force testing electric stimulation for drone operators

(Newser) - When you're spending hours tracking the activity of spy drones, it can be hard to stay alert, even if you've got Red Bull. Now, the military is testing a caffeine alternative, and it involves the unlikely tactic of shocking drone operators' brains, the Boston Globe reports. The results...

You May Well Have 'Caffeine Use Disorder'

Researchers say health concern needs more attention

(Newser) - You're probably aware of health concerns tied to coffee—but you may not know that your dependence could amount to a diagnosable problem. In a recent study, researchers find that Caffeine Use Disorder may be more of a problem than many doctors realize. "There is misconception among professionals...

Energy Drinks Change Your Heartbeat
 Energy Drinks 
 Change Your 
 Heartbeat 
STUDY SAYS
Dec 3, 2013 7:33 AM CST

Energy Drinks Change Your Heartbeat

Not a problem, says energy drink maker

(Newser) - Downing energy drinks packed with caffeine actually causes your heart to pump more forcefully, according to researchers who are pretty sure that isn't a good thing. The heart researchers, who were trying to determine why the drinks are linked to tens of thousands of emergency room visits annually, gave...

New Way to Get a Caffeine Jolt: Spray It On

Startup trying to sell sprayable version

(Newser) - If you like energy drinks but hate the drinking part, then Harvard undergrad Ben Yu and venture capitalist Deven Soni have a product for you. The two are trying to launch a product called "Sprayable Energy," that, you guessed it, gives you a jolt of caffeine straight through...

DSM's Latest Mental Disorder: Caffeine Withdrawal

Must have 3 of 5 symptoms, according to DSM-5

(Newser) - If you've ever gone a day without caffeine and felt like you were going insane, well, you may not have been far off. The American Psychiatric Association has added caffeine withdrawal to the latest version of its Diagnostic and Statistical Manual of Mental Disorders. To be officially diagnosed, you...

Energy Drinks' Secret Ingredients Don't Work

It's just caffeine, study concludes

(Newser) - There is exactly one ingredient in energy drinks that actually perks you up, a new study suggests: good old caffeine. None of the other ingredients that supposedly give the drinks an edge actually improve alertness, researchers concluded. They gave participants water, water with caffeine, and 5-Hour Energy, and had them...

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