Psychology & Psychiatry

Social networks and suicide prevention

Depression and mental health problems are increasing—and suicide and drug overdose rates are rising dramatically in the USA.

Diseases, Conditions, Syndromes

Pakistan demands Facebook remove polio vaccine misinformation

Pakistan urged Facebook to remove harmful polio-related content from the social networking site on Friday, saying it was jeopardising eradication initiatives and putting the lives of vaccinators at risk.

Psychology & Psychiatry

Five things to know about loneliness in older adults

Loneliness, an emotional state rather than a mental disorder, can substantially affect the health of older adults, as well as use of health care services. A "Five things to know about ..." practice article in CMAJ (Canadian ...

Psychology & Psychiatry

How to keep your kids safe from cyberbullying

(HealthDay)—No type of bullying is acceptable, but cyberbullying can be harder for parents to spot because it takes place via cellphone, computer or tablet, often through social media.

Addiction

Heroin users aware of fentanyl, but at high risk of overdosing

Most heroin users in Baltimore, a city heavily affected by the opioid epidemic, recognize that the heroin they buy is now almost always laced with the highly dangerous synthetic opioid fentanyl, according to a new study led ...

Health

How much sleep do teenagers really need?

Parents worry about whether their teenagers are getting enough sleep. Research studies suggest that teenagers are suffering an "epidemic of sleep deprivation" globally —one that will have long-term health impacts.

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Social network service

A social network service focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. Most social network services are web based and provide a variety of ways for users to interact, such as e-mail and instant messaging services.

Social networking has encouraged new ways to communicate and share information. Social networking websites are being used regularly by millions of people.

While it could be said that email and websites have most of the essential elements of social network services, the idea of proprietary encapsulated services has gained popular uptake recently.

The main types of social networking services are those which contain category divisions (such as former school-year or classmates), means to connect with friends (usually with self-description pages) and a recommendation system linked to trust. Popular methods now combine many of these, with Facebook widely used worldwide; MySpace, Twitter and LinkedIn being the most widely used in North America; Nexopia (mostly in Canada); Bebo, Hi5, StudiVZ (mostly in Germany), Decayenne, Tagged, XING;, Badoo and Skyrock in parts of Europe; Orkut and Hi5 in South America and Central America; and Friendster, Multiply, Orkut, Wretch, Xiaonei and Cyworld in Asia and the Pacific Islands.

There have been some attempts to standardize these services to avoid the need to duplicate entries of friends and interests (see the FOAF standard and the Open Source Initiative), but this has led to some concerns about privacy.

This text uses material from Wikipedia, licensed under CC BY-SA