harvard
my fitness pal
my positive outlooks
positive
positive psychology news
positive sharing
positively positive
positively psychological
web md
count
sauces
help
I'm confused... What am I doing here?

Choose which sources you wish to remain and you're all set. Use the buttons to turn sources on and off.

What do the different colours mean?

Depending on if any articles/links are visible on the page there are 4 modes to show the state of your chosen sources.

on / visible on page

off / visible on page

on / not visible on page

off / not visible on page

Some Psoriasis Meds May Also Help Prevent Heart Disease  - web md

Some Psoriasis Meds May Also Help Prevent Heart Disease

Chronic inflammation in people with psoriasis is associated with the development of plaque in heart arteries, which increases the risk of coronary artery disease. In biologic therapy, patients receive protein-based infusions to reduce inflammation.
web md - 2 days ago
Doctors Should Watch for Punctured Lungs in COVID Patients  - web md

Doctors Should Watch for Punctured Lungs in COVID Patients

Before the pandemic, this problem was typically seen in very tall young men or older patients with severe lung disease. But some British researchers noticed that several patients with COVID-19 developed the condition and decided to investigate.
web md - 2 days ago
Even Exercise May Not Ease Pandemic-Linked Stress  - web md

Even Exercise May Not Ease Pandemic-Linked Stress

Those who said their physical activity levels had declined in the first two weeks after stay-at-home orders were issued reported higher levels of stress and anxiety, a finding that the researchers expected.
web md - 2 days ago
Report: Trump Downplayed COVID Threat  - web md

Report: Trump Downplayed COVID Threat

President Trump said in early February that the new coronavirus was deadlier than the flu and that it could travel through the air, according to a new book from journalist Bob Woodard. In recorded interviews, he said in March that he wanted to downplay the threat so it wouldn't cause a panic.
web md - 1 week ago
Are Masks a Kind of Vaccine Against COVID-19?  - web md

Are Masks a Kind of Vaccine Against COVID-19?

New research suggests face masks may act as a crude vaccine of sorts. The theory -- and it remains largely a theory -- is that by filtering out airborne coronavirus droplets and thereby lowering the dose of SARS-CoV-2 a person inhales, infections have much less chance of producing symptoms.
web md - 1 week ago
Permanent Nerve Damage for Some COVID-19 Survivors  - web md

Permanent Nerve Damage for Some COVID-19 Survivors

Placing a hospitalized COVID-19 patient in a face down position to ease breathing -- or "proning" -- has steadily gained traction as a pandemic lifesaver. But a small new study warns that it may lead to permanent nerve damage.
web md - 1 week ago
Campus Life in the COVID Era:

Campus Life in the COVID Era: 'We're Missing Out'

Many universities are putting the onus on students to prevent the spread of coronavirus – an approach both students and experts say creates mixed messages after inviting students back on campus in the first place.
web md - 1 week ago
Study Backs Use of Saliva COVID-19 Test  - web md

Study Backs Use of Saliva COVID-19 Test

A COVID-19 saliva test developed by researchers at Yale University appeared to perform at least as well as nasal swabs in a study of hospital patients, a finding that may help encourage more frequent use of self-collected samples.
web md - 1 week ago
Hospitals Set to Defy FDA’s COVID Plasma Directive  - web md

Hospitals Set to Defy FDA’s COVID Plasma Directive

The FDA, under pressure from the Trump administration, has authorized broader use of convalescent plasma for emergency treatment in COVID patients. But several major hospitals are resisting, saying they’ll opt instead to use the scarce resource to complete a clinical trial.
web md - 2 weeks ago
WebMD Poll: More Acceptance of COVID Vaccine  - web md

WebMD Poll: More Acceptance of COVID Vaccine

A new poll from WebMD finds that acceptance of a COVID-19 vaccine is gradually growing, with 54.6% of readers saying they would get one in the first year. That number increased slightly from a WebMD poll released in July,
web md - 2 weeks ago
Many COVID-Infected Hospital Workers Asymptomatic  - web md

Many COVID-Infected Hospital Workers Asymptomatic

Infection rates among staff also varied widely between hospitals, ranging from just 0.8% at one center to more than 31% at another. According to the study author, that likely reflects the level of coronavirus circulating in the city each hospital served.
web md - 2 weeks ago
Cellphone Data Can Help Track Pandemic Spread  - web md

Cellphone Data Can Help Track Pandemic Spread

Researchers analyzed cellphone use in more than 2,700 U.S. counties between early January and early May to identify where the phones were used, including workplaces, homes, retail and grocery stores, parks and transit stations.
web md - 2 weeks ago
Most Americans Wear Masks, But Myths Linger: Poll  - web md

Most Americans Wear Masks, But Myths Linger: Poll

About nine in 10 Americans said they are knowledgeable about mask-wearing and that they sometimes, often or always wear a mask when they leave their home and are unable to social distance, the online poll shows.
web md - 2 weeks ago
Remote Monitoring May Help Control High Blood Pressure  - web md

Remote Monitoring May Help Control High Blood Pressure

Doctors already recommend that people with high blood pressure use a home monitor to track their numbers. But research suggests that home readings, alone, only make a small difference in getting the condition under control.
web md - 2 weeks ago
FDA Expands Use of Remdesivir for COVID-19 Treatment  - web md

FDA Expands Use of Remdesivir for COVID-19 Treatment

The Federal Drug Administration has broadened its emergency use authorization for the anti-viral drug remdesivir to include all hospitalized coronavirus patients, not just those who are so ill they require ventilators or oxygen therapy.
web md - 2 weeks ago
How CEO Garry Ridge keeps the WD-40 organization happy in spite of COVID-19 - positive sharing

How CEO Garry Ridge keeps the WD-40 organization happy in spite of COVID-19

How does an organisation get through a huge crisis like COVID-19 safely and happily? Garry Ridge is company Chairman and CEO at world-famous brand WD-40. I bet you have a can of WD-40 somewhere in your home! He is also a leader who has spent his career creating a culture where people can be happy … Continue reading How CEO Garry Ridge keeps the WD-40 organization happy in spite of COVID-19 →
Fewer Severe Asthma Attacks In Kids During COVID  - web md

Fewer Severe Asthma Attacks In Kids During COVID

In a new study, doctors there noted the drops were significant: the hospital and its care network witnessed a 60% decrease in daily asthma health care visits and an 83% decrease in steroid prescriptions.
web md - 3 weeks ago
Texas Mother Transmitted COVID-19 to Unborn Baby  - web md

Texas Mother Transmitted COVID-19 to Unborn Baby

Though the patient didn't have the typical respiratory symptoms associated with COVID-19, she did have a fever and diarrhea, suggesting possible viral infection. Before going to the hospital, she didn't know she had the coronavirus.
web md - 3 weeks ago
Survivors

Survivors' Plasma Still OK for Treating COVID-19

Some scientists have questioned both the timing of the approval and the veracity of a key survival statistic cited by FDA Commissioner Dr. Stephen Hahn. And the clinical trials needed to make sure that convalescent plasma really works are not yet complete.
web md - 3 weeks ago
FDA Chief Apologizes for COVID Treatment Claim  - web md

FDA Chief Apologizes for COVID Treatment Claim

But many scientists, including a researcher on the Mayo Clinic study from which the statistic was supposedly gleaned, said Monday they could not ascertain where the number came from and that Hahn had appeared to overstate the treatment's benefits
web md - 3 weeks ago
LOAD MORE HEALTH
harvard
my fitness pal
my positive outlooks
positive
positive psychology news
positive sharing
positively positive
positively psychological
web md
count
sauces
help
I'm confused... What am I doing here?

Choose which sources you wish to remain and you're all set. Use the buttons to turn sources on and off.

What do the different colours mean?

Depending on if any articles/links are visible on the page there are 4 modes to show the state of your chosen sources.

on / visible on page

off / visible on page

on / not visible on page

off / not visible on page

harvard
Wondering about goosebumps? Of course you are

Wondering about goosebumps? Of course you are

harvard - 1 month ago

They go by different names: goosebumps, goose pimples, goose flesh, and my personal favorite, goose bumples. The medical term is cutis anserine (cutis means skin and anser means goose). I guess the similarity in texture is just too close to goose skin to ignore. Other medical terms for goosebumps are horripilation, piloerection, or the pilomotor reflex.

Each of these terms describes a temporary change in the skin from smooth to bumpy, most commonly developing after exposure to cold.

Many people associate goosebumps with fear, or perhaps more accurately, with horror. Perhaps thats why a popular series of childrens horror stories by R.L. Stine published in the 1990s was called Goosebumps.

Ever wonder why you get them? Do they serve a purpose? Why do they develop when were frightened?

What are goosebumps?

Goosebumps are the result of tiny muscles flexing in the skin, making hair follicles rise up a bit. This causes hairs to stand up. Goosebumps are an involuntary reaction: nerves from the sympathetic nervous system the nerves that control the fight or flight response control these skin muscles.

In the animal kingdom, a threatened animal has a similar reaction, causing fur to be puffed out a bit. This makes the animal appear bigger and more dangerous. Perhaps the most dramatic example is the porcupine, which puffs out its quills when sensing danger. This can make a threatening adversary think twice before attacking. That may explain why the sympathetic nervous system controls goosebumps the reflex is tied into the fight or flight response.

This just in

Researchers studying mice recently linked goosebumps to the regeneration of hair and hair follicles. It seems that the nerves connected to the tiny muscles responsible for goosebumps also connect to hair follicle stem cells, which are the cells responsible for hair growth. So, in response to cold, the nerve tells the tiny muscles in the skin to contract (causing goosebumps) and the same nerve activates hair follicle stem cells for new hair growth.

What purpose do goosebumps serve?

Goosebumps may help you conserve heat when youre exposed to cold. They may do this in several ways.

  • As with larger muscles, contraction of the muscles in the skin (called arrectores pilorum) generates heat.
  • The raised hair follicles cause skin pores to close.
  • Hairs standing up trap a layer of air near the skin, holding onto body heat.

Each of these might be more important for furry animals than for humans. In fact, its not clear how important goosebumps are in humans. For example, if you couldnt form goosebumps at all, it wouldn’t necessarily mean that youd have problems with temperature control. Goosebumps may be one of those leftovers from our evolutionary ancestors (like the coccyx, or tailbone) that serve no important purpose.

The new discovery linking goosebumps with hair follicle stem cells might be explained as a longer-term response to cold, at least for animals with fur: they get goosebumps (or the animal equivalent) in the short run to conserve heat, and thicker fur to keep warmer in the long term.

Goosebumps: More than just being cold

Most people associate goosebumps with unpleasant situations, such as feeling particularly cold or feeling afraid. Yet there is more to it than that. The arrectores pilorum are hooked up to the sympathetic nervous system, and the sympathetic nervous system has input from many parts of the brain, including those involved with motivation, arousal, and emotion. So other stimuli may cause goosebumps, for instance:

  • hearing music or seeing art that is particularly moving or completely engrosses you (which is why you might say it gave me chills)
  • awe
  • pride
  • excitement
  • fear.

Goosebumps and disease

Though rare, goosebumps can be a sign of a seizure disorder called temporal lobe epilepsy, a disorder of the sympathetic nervous system, or other brain disorders. They are also common during heroin or other opiate withdrawal. In fact, one explanation for the origin of the expression quitting cold turkey is that goose bumps that develop during withdrawal from heroin mimic cold turkey flesh.

The bottom line

Youll see goosebumps most often when youre cold. But dont be surprised (or afraid or awed) if they appear at other times. They are a universal but poorly understood phenomenon, but our understanding is improving. And the recent discovery linking goosebumps with hair follicle regeneration could lead to more than just a better understanding of goosebumps; it could lead to new ways to fight baldness or improve tissue healing.

In humans, its possible that goosebumps will gradually disappear over the coming centuries as with other remnants of evolution, like the tailbone or wisdom teeth. Or they may serve a more important role than we currently understand and continue to puzzle us for years to come.

The post Wondering about goosebumps? Of course you are appeared first on Harvard Health Blog.

sauce: harvard
CLOSE