TheEnvironmentalist
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Can someone die of asphyxiation while still having high oxygen saturation?
2 votes

Yes, it is absolutely possible. There are several poisons, most notably cyanide, which interfere with the body's ability to take up or use oxygen from the blood, despite it being present in ample ...

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Can MRI scans be dangerous for one's health?
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43 votes

One of the greatest benefits of MRI scans is their safety. Unlike PET, X-ray, CT and most other scans, MRIs use the properties of body tissues in magnetic fields to produce an image. The MRI machine ...

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How many calories does it burn to regrow a liver?
1 votes

To get the answers started, though admittedly with a very rough estimation, I'll add my own idea of a lower bound of calories burned to regrow an entire liver. Because basic laws of thermodynamics ...

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What is a T2 hyperintense focus in the subcortical white matter?
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1 votes

There are a few terms to define here, and I'll go through them one by one: T2 This has to do with the type of scan. MRI's are pretty complicated technologically, but the basic idea is that body ...

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Why is it or isn't it smart for a healthy individual to perform auto-surgery in removing suspicious skin spots?
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1 votes

The Mayo Clinic published a slideshow aimed at helping people identify possible melanomas. Take a look at it. Do you think you'd be able to successfully differentiate between a melanoma and a benign "...

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Is it true if you don't wear sunglasses when it is sunny out, you will get cataracts when you're old?
1 votes

Cataracts are caused mostly by "aging," which is basically the vaguest possible way of saying the effects of decades of life on a body that's not made to last forever. One notable cause though is ...

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Why can glyceryl trinitrate (a.k.a. nitroglycerin) patches cause severe headaches?
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3 votes

Headaches in general are quite poorly understood, and there are a number of different types of headaches, with a very large number of conditions known to cause them.1 A common denominator though seems ...

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Body building without protein shakes
1 votes

First of all, know that you regularly consume protein and have been all of your life. If you did not, you would be in quite terrible health.1 That being said, IGF-1 is involved in bone growth, muscle ...

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Is there a proven way to test if I'm susceptible to the placebo effect?
4 votes

Introduction The placebo effect is a very interesting thing to study. To keep this scientific, though, let's divide your question into three addressable points: Does the placebo effect work? Does the ...

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Are artificial sweeteners safe?
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21 votes

Introduction There have been numerous studies on this topic, and there are a number of artificial sweeteners, so the following is a discussion of three of the most important, saccharin, cyclamate and ...

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