Diseases, Conditions, Syndromes

Asymptomatic spread of COVID-19 makes it harder to contain

One of the more challenging aspects of the coronavirus pandemic has been the prevalence of asymptomatic cases, or people who are infected with the virus and can spread it to others but do not feel sick. In Iceland, where ...

Psychology & Psychiatry

How to tell when someone's lying

(Medical Xpress) -- When someone is acting suspiciously at an airport, subway station or other public space, how can law enforcement officers determine whether he's up to no good?

Neuroscience

Frailties of old age just hit some people earlier than others

People grow old at different rates, regardless of what the calendar says. And for those whose bodies age more quickly, the cumulative effects show up as early as midlife, when signs of dementia and physical frailty begin ...

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Security

Security is the degree of protection against danger, loss, and criminals.

Security has to be compared and contrasted with other related concepts: Safety, continuity, reliability. The key difference between security and reliability is that security must take into account the actions of people attempting to cause destruction.

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