Hot answers tagged physiology
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In this instance, I would say your attention has been adjusted, not your ear's ability to perceive sound. Our ears don't have a control setting or a means of adjusting incoming sound levels (though I'm certain when an ambulance with loud siren drives by, we all wish we did).
What you are experiencing is a prioritization of the sound by your brain in ...
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You can't remove most organs. The heart, lungs and brain are the ones that without you'll die in seconds. The rest you'll live a few hours or more. All depends how long you wish to live. The best way to see which organs are most required is to look at the order organs are shut down when there isn't enough oxygen or blood. That tells you which area most and ...
3
Here are some off the top of my head.
The height an animal can jump depends on the muscle cross-sectional area ($l^2$) and its mass ($l^3$). Mass grows faster with body size ($l$) so small animals can therefore jump higher relative to their body size ($l$) than large animals. Very similar scaling exists for strength of limbs vs. mass, ability to fly vs. ...
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This seems to be a piece of pseudoscience commonly seen these days. The truth is that this effect has never been statistically observed.
From the Skeptics Stack Exchange site:
Ivan Kelly, James Rotton and Roger Culver (1996) examined over 100 studies on lunar effects and concluded that the studies have failed to show a reliable and significant ...
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The diaphragm moves down during inspiration. This leads to air being sucked in, due to the pressure difference created. The converse is true during expiration. As the thoracic space is where the SVC sits, it's pressure decreases during inspiration as it is subjected to the surrounding decrease in pressure.
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There is a list of "vital organs" on which there is a consensus that if such organs are removed, the body dies within hours/minutes. Yet people can live long with only one lung or one kidney.
Another list could include other organs that are semi-vital: we could live for a relatively long period without them, but their absence has to be compensated with a ...
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Besides its confrontational style, the way this question was asked suggests the author hasn't really looked into this or at least isn't clear on what questions they should be asking. It is true that, in modern scientific culture, you cannot get approval to lock a bunch of college kids in a room for a week without food or water so you can check in with them ...
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Upper bound of HDL doesn't really exist. The greeks are known for their incredibly high levels of HDL and the so called mediterranean diet/genetics combination that causes this is only beneficial to health (supposedly - although never been proven that incredibly high HDL levels are beneficial, they're just not harmful).
As for too low LDL ...
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