Health & Fit: How Pulling An All-Nighter Affects Your Brain - PressFrom - US

Health & FitHow Pulling An All-Nighter Affects Your Brain

21:50  11 february  2019
21:50  11 february  2019 Source:

MDMA drug makes you nicer, but not naive: study

MDMA drug makes you nicer, but not naive: study MDMA, the main ingredient in ecstasy, makes humans more likely to cooperate -- but only with trustworthy people -- researchers said Monday in the first study into how the drug impacts our willingness to help others. 

When your body says, "sleep," but your anxiety says, "not until you finish this project," sometimes your mind gets the best of you. The next thing you know, it's morning, and you've pulled an all-nighter. Whether you're a student, a busy parent, a burned-out employee, or some combination of all of those things, chances are you've been in this situation.

The morning after an all-nighter, you feel like a shell of yourself: It's harder to concentrate, make decisions, respond to impulses, and think creatively when you're sleep deprived. From a scientific standpoint, this all makes sense, because your body needs sleep to function, even down to a cellular level.

How Playing Video Games Affects The Brain

How Playing Video Games Affects The Brain The health effects of playing video games have been a subject of much debate. Here's what science says about the effects they might have on our brains.

A 2015 study in the journal PLOS One showed that a night of missed sleep can lead to structural changes in the brain. Another 2017 study out of the University of California Los Angeles found that sleep deprivation disrupts brain cells' ability to communicate, which is why you experience so many "mental lapses" after a sleepless night. The hormone cortisol also follows a specific pattern overnight, but without sleep, cortisol can't drop, and your body will feel confused the next day. And finally, we also know based on animal studies that, over time, sleep deprivation can increase buildup of a protein that's associated with Alzheimer's disease. So, sleep is a pretty big deal.

A good night's sleep is a reset process for the brain and body the next day, says Alexis Halpern, MD, emergency medicine physician at New York-Presbyterian/Weill Cornell Medical Center. "Sleep allows the body’s cells to re-energize, and the brain to clear waste and toxins from the day, and make space for memories and learning," she says. Most of the time, pulling an all-nighter is not worth it, because you'll feel both miserable and moody the next day. But sometimes, an all-nighter really is necessary.

Bullying Isn't Just "a Part of Growing Up" - It's Altering Our Kids' Brains

Bullying Isn't Just A study published in the journal Molecular Psychiatry found that teens who are bullied are at higher risk for mental illnesses and could experience shrinkage in parts of their brains. require(["medianetNativeAdOnArticle"], function (medianetNativeAdOnArticle) { medianetNativeAdOnArticle.getMedianetNativeAds(true); }); The IMAGEN study, which looked at nearly 700 14- to 19-year-olds in England, Ireland, France, and Germany, assessed the participants' brain development through questionnaires about bullying at ages 14, 16, and 19, as well as brain scans at ages 14 and 19.

As an emergency medicine doctor, Dr. Halpern has experience staying up all night to work a night shift in the ER. She believes you can never really "catch up" on sleep, but there are a few things she does to make her necessary all-nighters less miserable. The day before an overnight, Dr. Halpern will sleep as late as possible into the afternoon, then try to do some light exercise to get her body energized. "I eat light meals, and I only drink coffee right before I go in," she says. "I definitely avoid a heavy dinner and make sure to bring a lot of snacks — preferably healthy, because a sugar rush overnight leads to a terrible crash at a time the body wants to be asleep." Afterward, she'll come home and sleep until the afternoon, then try to go to bed at a normal time.

While the health effects of shift work are complex, Dr. Halpern says it can take a few days to get back on track with a sleep schedule like hers. Even so, she doesn't recommend pulling an all-nighter if you have the choice. No matter how stressed you are, it's important to remember that sleep is more than just a break from your work, it's a complex and necessary biological process. Bottom line: You're probably better off doing a little less work and getting a little more sleep, she says.

How fear affects your body.
Fright in the flesh. What is going on in there? Alarm strikes your body within seconds of recognizing a threat. Here’s what’s going down. 1. Amygdala Before you consciously process a problem, this almond-shaped brain region activates and begins to amp up the sympathetic nervous system’s fight-or-flight response. 2. Hippocampus and frontal cortex The rational centers of our brain kick in, analyzing whether the perceived visual or auditory input  shows a true danger. 3. Cardiovascular system Stress hormones increase your heartbeat and breathing rate while dilating the tiny airways in your lungs. This allows more oxygen to reach your muscles. 4.

—   Share news in the SOC. Networks

Topical videos:

usr: 1
This is interesting!