Vertigo

Vertigo is when a person feels as if they or the objects around them are moving when they are not. Often it feels like a spinning or swaying movement. This may be associated with nausea, vomiting, sweating, or difficulties walking. It is typically worsened when the head is moved. Vertigo is the most common type of dizziness.

The most common diseases that result in vertigo are benign paroxysmal positional vertigo, Ménière's disease, and labyrinthitis. Less common causes include stroke, brain tumors, brain injury, multiple sclerosis, and migraines. Physiologic vertigo may occur following being exposed to motion for a prolonged period such as when on a ship or simply following spinning with the eyes closed. Other causes may include toxin exposures such as to carbon monoxide, alcohol, or aspirin. Vertigo is a problem in a part of the vestibular system. Other causes of dizziness include presyncope, disequilibrium, and non-specific dizziness.

Benign paroxysmal positional vertigo is more likely in someone who gets repeated episodes of vertigo with movement and are otherwise normal between these episodes. The episodes of vertigo should last less than one minute. The Dix-Hallpike test typically produces a period of rapid eye movements known as nystagmus in this condition. In Ménière's disease there is often ringing in the ears, hearing loss, and the attacks of vertigo last more than twenty minutes. In labyrinthitis the onset of vertigo is sudden and the nystagmus occurs without movement. In this condition vertigo can last for days. More severe causes should also be considered. This is especially true if other problems such as weakness, headache, double vision, or numbness occur.

Impact

Impact may refer to:

In science:

Impact (mechanics), a high force or shock (mechanics) over a short time period

Impact crater, a meteor crater caused by an impact event

Impact event, the collision of a meteoroid, asteroid or comet with Earth

Impact factor, a measure of the citations to a science or social science journal

In development:

Impact evaluation, a way of evaluating changes from an intervention or development programme.

In computing:

IMPACT (computer graphics), a computer graphics architecture for Silicon Graphics computer workstations

In film, television and radio:

Impact, a BBC World News weekday programme.

Impact (1949 film), a 1949 film noir starring Brian Donlevy and Ella Raines

Impact (1963 film), a 1963 crime thriller starring Conrad Phillips

Impact (mini-series), a 2008 television mini-series starring Natasha Henstridge and David James Elliott

Impact Wrestling, the primary weekly television program of Total Nonstop Action Wrestling

In literature:

Bath Impact, the student newspaper for the University of Bath Students' Union, England

Emotional Intelligence by Venugopal Laxmipuram at ...

JD LAKSHMINARAYANA gari speech at IMPACT Vijayawad...

Success secrets by Gampa Nageshwer Rao at IMPACT 2...

Dr Yandamoori Veerendranath at IMPACT 2016...

Impact, Best Top NA Montage - 2016 NA LCS/Regional...

Sridhar Nallamothu at IMPACT 2016...

IMPACT - Mon secours est en Toi _ PS. 121 (Acousti...

Sleeping Secrets by JS Peddiraju at IMPACT 2016...

The Key is in your pocket by Venugopal Lakshmipura...

TNA iMPACT Wrestling 15 September 2016 Full Show -...

photo: UN / Eskinder Debebe

A panel discussion entitled, “Addressing the socioeconomic needs of individuals, families, and societies affected by autism spectrum disorders and other developmental disorders,” is held at United Nations Headquarters today for World Autism Awareness Day.

[VIDEO]: 10-Year-Old Autistic Boy In Coma After Being Set On Fire By' Friends'

Edit WorldNews.com 07 Oct 2016

A 10-year-old Texas special-needs boy remains on life support after bullies allegedly lured him to a field, doused him with gasoline and lit him on fire Sunday, The New York Post reported Thursday ... As of Thursday afternoon, Kayden’s family had raised over more than times their $10,000 goal ... A total three boys – ages 9, 10 and 11 – were in custody following the grisly attack, the report said, quoting Fox....

photo: Creative Commons / Cliff

Thammasat University massacre: A crowd looks on, some with smiles on their faces, as a man uses a folding chair to beat the hanged body of a student just outside the university

Thailand Is Marking the Darkest Day In Its Living Memory

Edit Topix 06 Oct 2016

Thai activists hold candles at Thammasat University in Bangkok, Thailand, Thursday, Oct. 6, 2016. Buddhist monks, mourners, activists and others gathered Thursday to mark the 40th anniversary of one of the darkest days in Thailand's history, when police killed scores of university students at a peaceful protest ... ....

photo: WN

KLdy1 - Oct07 - jkt07 - Great Wall of China, Beijing, China. (dy1)

Collapse Of 'Moon Gate' Prompts Debate On Great Wall Of China Preservation

Edit WorldNews.com 06 Oct 2016

The recent collapse of the Great Wall of China’s "Moon Gate" — a well-known landmark in Guangwu, Shanxi province — has put protection of the wall into the limelight for a second time in a few weeks, China Daily reports.The gate, which was already suffering decay, was part of an old watchtower. It apparently collapsed on Monday night ... WN.com, Jim Berrie....

photo: AP / Antonio Calanni

Carabinieri General and chief of ROS (Special Operations Group) Giuseppe Governale, left, sits by head of anti-terrorism unit Lamberto Giannini, during a news conference to illustrate an anti-terrorism operation, in Milan, Italy, Thursday, April 28, 2016.

[VIDEO]: Catturato! Italian Mafia Boss Found Hiding In Secret Room In House

Edit WorldNews.com 06 Oct 2016

Italian police have released audio-free footage of a fugitive mafia boss caught hiding in a secret room in his own home after five years on the run, BBC News reported. The report says it took agents several hours to dislodge Antonio Pelle, 54, from his hideout between a bedroom and a bathroom, before they were able to arrest him ... He faces 20 years in jail if convicted for drugs and arms smuggling charges, the report said. ....

photo: AP / Robert F. Bukaty

Republican presidential candidate Donald Trump speaks at a town hall-style forum, Thursday, Oct. 6, 2016, in Sandown, N.H.

Donald Trump says 70% of federal regulations could go

Edit BBC News 07 Oct 2016

US Republican presidential candidate Donald Trump has said he could cut as many as 70% of federal US regulations if he is elected ... Earlier, one of his advisers said 10% of regulations could be eliminated ... "We are cutting the regulation at a tremendous clip," Mr Trump said ... ....

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US: Coal mine expansion to have minor climate impact

Edit Omaha World-Herald 07 Oct 2016

BILLINGS, Mont. (AP) — U.S. officials approved a 117 million-ton expansion of a Montana coal mine after concluding that burning the fuel would have a minor impact on the nation's overall greenhouse gas emissions, according to documents released Thursday ... ....

Falcons hoping newly signed Hawk makes quick impact

Edit The Virginian-Pilot 07 Oct 2016

FLOWERY BRANCH, Ga. (AP) — A.J. Hawk's passion for working out could have him in position to make a quick impact with the Atlanta Falcons, who badly need help at linebacker ... ....

Train going twice speed limit, hit brakes second before Hoboken station bumper impact: NTSB

Edit Japan Times 07 Oct 2016

A New Jersey Transit train that crashed into Hoboken’s terminal last week, killing one person and injuring more than 100 others, was going twice the speed limit at the moment of impact, and the train’s engineer hit the emergency brake less than a second before the crash, federal investigators said Thursday. The National Transportation Safety appeared first on The Japan Times . > ... ....

Electric Power Industry Prepares for Hurricane Matthew's Impact on Customers in Southeast U.S.

Edit PR Newswire 07 Oct 2016

WASHINGTON, Oct. 6, 2016 /PRNewswire-USNewswire/ -- As Hurricane Matthew begins to impact Florida, electric companies in the storm's path are prepared to respond to customer power outages once conditions are safe to do so. Affected companies and mutual assistance crews from more than ... ....

G20 debated global risks, impact of ultra-easy monetary policy -Japan

Edit Reuters 07 Oct 2016

WASHINGTON, Oct 6 (Reuters) - Group of 20 finance leaders debated global economic risks and the potential impact that ultra-loose monetary policies have on bank profits, a senior Japanese finance... ....