Health checks from age 40 avoid 'black hole'
Seeing a health professional for a full health screening—even when you feel healthy—from around age 40 enables people to make changes when problems first set in, experts say.
Jul 1, 2019
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Seeing a health professional for a full health screening—even when you feel healthy—from around age 40 enables people to make changes when problems first set in, experts say.
Jul 1, 2019
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An international team of researchers has found evidence that suggests children begin to become susceptible to social influence when they reach age 12. In their paper published in Proceedings of the National Academy of Sciences, ...
Long-term survivors of stroke in Australia have "fallen into a black hole," left with lifelong disability with "inadequate" ongoing services and support, according to the authors of a Perspective published today by the Medical ...
Aug 29, 2022
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One of the hallmarks of obsessive-compulsive disorder is contamination fears and excessive hand-washing. Years ago, a patient with severe OCD came to my office wearing gloves and a mask and refused to sit on any of the "contaminated" ...
Jun 16, 2020
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Do you have a dream job? New evidence says that, rather than finding your passion, you should develop it instead.
Sep 4, 2018
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COVID-19 is taking a terrible toll worldwide. But in the Himalayan territory of Kashmir, it's only the latest indignity in a 73-year cycle of oppression, militarization and scarcity.
Jul 20, 2020
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In general relativity, a black hole is a region of space in which the gravitational field is so powerful that nothing, including light, can escape its pull. The black hole has a one-way surface, called an event horizon, into which objects can fall, but out of which nothing can come. It is called "black" because it absorbs all the light that hits it, reflecting nothing, just like a perfect blackbody in thermodynamics. Quantum analysis of black holes shows them to possess a temperature and Hawking radiation.
Despite its invisible interior, a black hole can reveal its presence through interaction with other matter. A black hole can be inferred by tracking the movement of a group of stars that orbit a region in space which looks empty. Alternatively, one can see gas falling into a relatively small black hole, from a companion star. This gas spirals inward, heating up to very high temperature and emitting large amounts of radiation that can be detected from earthbound and earth-orbiting telescopes. Such observations have resulted in the scientific consensus that, barring a breakdown in our understanding of nature, black holes do exist in our universe.
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