What Caffeine Does To Your Body And Brain

Many of us depend on caffeine. Some of us can’t even start our day without it.

Whether you get your daily caffeine fix from coffee, tea, or a canned energy drink doesn’t make much of a difference. It’s still a stimulant with some positive and negative effects.

For starters, caffeine attains most of us feel more alert and awake. But while it can keep us focused, too much can also backfire. And the committee is also affects everything in our bodies from our digestion to our metabolism and vision.

It makes us feel alert .

Flickr/ Appyyy

Its natural to grow increasingly tired throughout the day our brains naturally make more and more of a molecule called adenosine from the time we wake up until the time we go to sleep. Scientists think this helps us get to bed at night.

Caffeine hijacks this natural process by simulating adenosine in the brain. It latches onto the receptors designed for adenosine, pushing them out of the way. As a outcome, were left feeling more alert and awake.

At least until it doesn’t .

Flickr/ HaoJan Chang

Eventually, adenosine wisens up to caffeines act, though, and makes new receptors for the sleep-inducing molecule to start latching on again.

This is why your morning cup of coffee can abruptly turn into two the more receptors you have, the more caffeine you need to plug them up.

It boosts our mood .

Flickr/ Jorien Janssen

As a central nervous system stimulant, caffeine doesnt just boost alertness, it can also improve your mood and is even associated with a reduced danger of depression especially when consumed in the form of coffee.

Even though too much of any stimulant can induce people anxious and irritable, a mild dosage has been shown to boost mood. This is due to the same adenosine-blocking consequence that makes you feel alert. By blocking adenosines relaxing impacts, caffeine lets dopamine and glutamine, another natural stimulant being developed by your brain, run wild, making you more alert, less borne, and providing a mood boost.

Interestingly, a number of studies have found a connection between caffeine intake and a reduced risk of depression( and even a lower hazard of suicide ). However, at least one of these studies specifically procured this connection with caffeinated coffee but not tea, though others observed the same effects for tea as well.

But pumps up our adrenaline levels, which can leave us irritable .

Flickr/ richard winchell

Adrenaline is the hormone behind the fight or flight reaction. It tells us either to stay and face a threatening situation or flee the scene. Unfortunately, while a burst of adrenaline can be helpful for trenching someone chasing after us or defending ourselves in a fight, the aggressive hormone does no good when were trying to handle a more delicate situation like negotiating in a meeting or responding to a text.

Caffeine arouses our brain cells, which tells our hormone control center the pituitary gland that theres situations of emergency. The pituitary tells the adrenal glands( located above the kidneys) to flood the body with adrenaline.

In this excited state, were great at operating and fighting but we also tend to be more irritable, anxious, and far more emotionally-charged.

It improves our memory .

Caffeine has been shown to improve certain types of memory in some( but not all) analyzes, especially the ability to rememberlists of wordsand straightforward information. Some research shows that it helps those memories stick in the brain as well, making it easierto recall that info at a later time.

One recent survey indicates that extroverts get more of a working-memory boost from caffeine than introverts. This may explain why some studies find a more significant effect than others. Stephen Braun, the author of Buzz: The Science and Lore of Alcohol and Caffeine, explains that individuals reactions to caffeine vary greatly: while person or persons might thrive on a high level of caffeine, itll make another person unable to get anything done.

j.o.h.n. walker via flickr

This enhancement, however, seems to be strongest for people who arent already hooked on caffeine in the first place, and too much caffeine can actually lead to a decrease in performance.

And increases our attention span .

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One of the common reasons people use caffeine is to help them focus on a chore, and no wonder: one of the more clear mental effects of caffeine is a boost in the ability to focus, especially for someone who is fatigued.

Research displays that commercial drivers who encompass long distances are significantly less likely to crash if theyve consumed caffeine in any form coffee, tea, pills, or energy drinks.

However, most people are familiar with caffeine jitters too if you ingest too much of it, its hard to focus on anything.

But perhaps only after it’s hooked us .

Flickr/ Danielle Bos

Some research been shown that for some people, caffeines perceived benefits arent genuinely benefits at all.

For some, these studies suggest, all of the benefits of caffeine from better mood to improved memory and attention span may simply be the result of a new dosage of caffeine temporarily reversing the effects of longer-term withdrawal from the drug.

In other terms, when someone whos hooked coffee stops drinking coffee, she feels tired and is less attentive. When she starts drinking again, her performance increases but only because her brain and body had already become addicted to caffeine.

It might tamp down your appetite but only for a short time .

flickr user Dennis Skley

A cup of coffee likely blunts your appetite for a brief hour, but theres little to no evidence that making caffeine a regular habit can keep hunger stabs at bay or help with weight loss.

Most examines looking at caffeines effect on appetite have either been too small or only done in animals, building it hard to say their effects would apply to people more broadly.

It helps some medicines work faster .

If youve ever had a killer migraine, youve likely tried Excedrin, an over-the-counter medication marketed specifically for these kinds of rare, severe headaches. What you might not know is that in addition to traditional pain alleviating ingredients like ibuprofen and acetaminophen, Excedrin contains caffeine.

Theres some evidence that caffeine, when be included with certain pain-relieving drugs like acetaminophen( the main active ingredient in Tylenol) and aspirin, helps those drugs take effect quicker, last longer, and increases their effects.

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For example, a 2007 examine of 24 people who took either caffeine and the painkiller acetaminophen, either drug alone, or a placebo found that those whod taken the combination of( as opposed to either one alone) saw a stronger decrease in pain symptoms that also tended to last longer.

It’s one of the best athletic performance enhancers out there .

Flickr/ Steven Pisano

The most commonly used psychoactive medication in the world caffeine is also one of the more common performance-enhancing medications used in sports.

The reason? It works, provided you carefully calculate the right dosage and dont use too much of it in day-to-day life.

If you can tolerate it, it seems to be the upper objective of what you can have to improve performance, exert physiologist Matthew Ganio told The Atlantic. If dosed correctly( and if it isnt merely returning a caffeine junkie to a baseline level ), it provides just enough of a boost that athletes watch notable performance gains.

But it sticks around in our bodies for a long time .

Flickr/ LZdR

Ever wonder if that late afternoon beaker of coffee( or that evening espresso) is going to keep you up at night?

It takes about 5 or 6 hours before half of the caffeine youve ingested wears off so a couple beaker of coffee at 4 p. m. could leave you still feeling the effects of a beaker of coffee by 10 p.m.

If thats enough to keep you up, plan accordingly.

Caffeine can give you heartburn .

Shutterstock

While a warm cup of coffee might seem allaying if youre stressed out, it may have negative effects as well. Not merely can that adrenaline burst increase nervousnes levels, caffeine also raises acid levels in your belly. This can lead to heartburn and can be especially bad if you suffer from ulcers.

And it’s the most commonly used psychoactive medication in the world .

One of the things thats most rarely discussed with regard to caffeine is that it is, in fact, a drug. It has psychoactive impacts, changing the route we feel and interact with the world around us.

Its the most commonly usedpsychoactive drug in the entire world, which is probably why we dont think about it as a drug. Yet think of how many of us cant or wont get through a day without it( this novelist included ).

Facebook/ Alchemy-Coffee

Harvard neuroscientist Charles Czeisler thinks that caffeine, be included with energy, let humans to escape natural patterns of sleep and wakefulness, violating them free from the cycle of the sun, basically enabling the great transformation of human economic endeavor from the farm to the factory, according to a look at this miracle drug in National Geographic. It enables the modern world.

Read the original article on Tech Insider. Copyright 2017.
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Adequate nutrition should be priority for whole household – Baylor College of Medicine News( press release )( blog)


Baylor College of Medicine News( press release )( blog )

How Google’s $20 Virtual Reality Device Saved A Baby Girl’s Life

When identical twin Teegan and Riley Lexcen were born in August, physicians told their parents that Teegan, who was born missing a lung and half of her heart, wouldn’t survive for long.

Baby Teegan’s condition seemed inoperable, entailing she would need a miracle. Thankfully, after four months, doctors in Miami dedicated her one — with the help of a tool you don’t see in most operating rooms: a modest, build-it-yourself virtual reality spectator called Google Cardboard.

Because of Teegan’s missing lung, her heart is located in her far left chest, making it very difficult to operate. Doctors at the Nicklaus Children’s Hospital were further disadvantaged due to a broken 3-D printer, which meant there was no way to design or scheme a surgery.

That’s when the hospital get creative.

Using Teegan’s CT scans, the hospital converted the imagery into a digital 3-dimensional model, which was then made compatible with the Google Cardboard viewer, according to a press release from the hospital.

When used in combination with a smartphone, Google’s $ 20 kit enabled Teegan’s team of physicians to view her heart from all slants within the context of her body. They were then be permitted to design a surgery perfectly suited to her heart, greatly reducing the risk of operation.

On Dec. 10, Dr. Redmond Burke performed a seven-hour open-heart surgery, essentially rebuilding the 4-month-old’s heart.

Burke believes Google Cardboard, simple as it may appear, constructed the operation possible.

“There are certainly more expensive technologies you could use to look at virtual imaging, but I believed this was really elegant because it’s basically a cardboard box, ” Burke told reporters at a press conference.

Nicklaus Children’s Hospital
Dr. Burke stands with Cassidy and Chad Lexcen, parents of twins Teegan and Riley.

Now, though Teegan will require more surgeries, her parents “re hoping that” she will pull through.

“Being innovative seems to be the goal for this hospital and its doctors, ” Cassidy Lexcen said, according to the Miami Herald. “And innovation is what saved our daughter’s life.”

Read more: www.huffingtonpost.com

Toddler declared brain dead moves hospitals, attorney says | Fox News

Israel Stinson was declared brain dead after suffering from an apparent asthma attack. (Fox40)

A California toddler whose family waged a court battle to keep him on life support after he was declared brain dead has been transferred to another hospital.

According to a post on the family’s GoFundMe page, 2-year-old Israel Stinson was transferred to an undisclosed location in another country over the weekend.

“Israel Stinson was transferred out of Kaiser Permanente yesterday!!!” Jonee Fonseca, the boy’s mother, posted on the page. “He has been taken to another facility and is already receiving care!!!”

“Due to the sensitivity of Israel’s case, we are not yet ready to disclose where he is, but we can say this… in order for Israel to receive his badly needed care, he had to be transferred out of the United States,” Fonseca wrote.

Kevin Snider, the family’s attorney, confirmed Monday that the boy was admitted to another facility, but declined to release the name of the hospital.

More on this…

Read more: www.foxnews.com

The Smart Garden 9 is a self-contained kitchen garden for your “herbs” and vegetables

When we last met Click & Grow they were selling a massive wall garden designed for indoor gardening. Their new product, called the Smart Garden, is a self-contained kit pod for growing fruits, vegetables, and herbs that costs $129 on Kickstarter

The system is quite simple. You fill the water tank, place in small pods of soil, nutrients, and seeds and then turn it on. Its automatically lit by a set of LEDs and all you have to do is raise the lights when the plants get too high. The entry level gets you all lettuce pods but there are also seedless pods so you can grow anything you want.

The kit can grow nine plants and automatically waters your pods as necessary.

Mattias Lepp, founder of Click & Grow, was an orchestra conductor who went into IT. Telia acquired his first IT company in Estonia and he decided to return to his long-term interest in plant cultivation.

We have over 300,000 active users for our products thus far, he said. The main volume of users today is made up by our second generation product users, the Smart Herb Garden, but were seeing a lot of traction happening already for the larger wall farms directed at consumers as well.

The Smart Garden 9 got its start from surveys we made among our clients, he said. More than 80% indicated an interest in having a bigger garden than our previous one. The bigger bulk of the 9-hole product specific wishes came from the backers of our last project on Kicsktarter. So we decided to give people what they want and also improved some key features on the new garden: we featured high-end LED lights that offer plants the perfect spectrum to induce photosynthesis while focusing the lenses in a way that theres much less light pollution coming from the LEDs.

The company raised $4.1 million from a number of investors including Jaan Tallinn and Ruchi Sanghvi. Theyve also received some government funding to make the smart soil product. The Smart Garden 9 ships next July but I saw an early version and it looks like what Apple would make if it really liked tiny peppers. I approve.

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Federal appeals court says Fourth Amendment doesn’t protect phone location data

Police officers can demand a cellphone’s location data from a wireless company without getting a warrant, a federal court ruled Tuesday.

The U.S. Court of Appeals for the Fourth Circuit declaredthat Americans have no reasonable expectation of privacy for so-called “cell-site location information”records of where phones have been based on their contact with cell towersbecause they voluntarily share those movements with their wireless carriers as a condition of their contracts.

Because the Supreme Court has saidthat the Fourth Amendment does not cover “information voluntarily turns over to third part,” the appeals court, by a vote of 12 to 3, concluded that the government had not violated the Constitution in acquiring two robbery suspects’ phone location data without a warrant.

“The Supreme Court may in the future limit, or even eliminate, the third-party doctrine,” Judge Diana Motz wrote in the majority opinion. “Congress may act to require a warrant for CSLI. But without a change in controlling law, we cannot conclude that the Government violated the Fourth Amendment in this case.”

Federal appeals courts in Louisiana and Atlanta have previously ruled that cell-site location information can be obtained without a warrant. A federal appeals court in Ohio came to the same conclusionin April. Privacy activists were hoping that a ruling in their favor here would prompt the Supreme Court to consider the issue, something it rarely does unless appeals courts have issued conflicting rulings.

“Because months worth of cellphone location data can reveal extraordinarily private details of a persons life, the right way to protect people’s privacy interest in that information is to require a warrant,” Nathan Wessler, a staff attorney at the American Civil Liberties Union’s Speech, Privacy, and Technology Project, said in an email. “The Fourth Circuit’s decision is not the last word on this issue. Other appellate courts will surely address these questions soon, and the Supreme Court may well need to weigh in.”

Andrew Crocker, a staff attorney at the Electronic Frontier Foundation, said the ruling relied on “a strained definition of what it means to ‘voluntarily’ give information to third parties.”

“The use of a cell phone is all but a necessity in today’s world, but the court sidesteps any consideration of the realities of how people use this technology and of how long-term location tracking can reveal the intimacies of people’s lives,” he said in an email.

David Gray, an expert on surveillance law who teaches at the University of Maryland, said in an email that the ruling amounted to “an effective license for government agents to conduct exactly the kinds of broad and indiscriminate searches that are anathema to the Fourth Amendment as it would have been understood in 1791.”

A three-judge panel of the Fourth Circuit court previously ruledin this casethat the government did need a warrant to obtain Americans’ data from third parties, applying what is known as the “mosaic theory” of interpreting the landmark Supreme Court cases in this area. But the government sought a review of that decision by the full court, and on Tuesday it reversed that conclusion.

Decisions of the Fourth Circuit appeals court, which is based in Richmond, Virginia, are binding in Maryland, North Carolina, South Carolina, Virginia, and West Virginia.

Gray predicted that the lack of a circuit split wouldn’t prevent the Supreme Court from wading into the fray.

“The constitutional status of CSLI is in urgent need of clarification,” he said. “Although the Court may not be ready to take the issue up for its own reasons, I do not think the absence of a circuit split is stopping them.”

Correction: This is the fourth appeals court to issue this kind of ruling. Updated to reference two other rulings.

Update 3:25pm CT, May 31: Added ACLU comment.

Update 4:10pm CT, May 31: Added EFF and law professor comments.

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