A fluid which delivers substances to various cells within an organism's body. The most common fucntion are the delivery of nutrients and the transportation of waste products. Composition varies widely across species.

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Do you bleed more when drunk?

While my friend was getting a tattoo the tattoo artist said you'll bleed more because you're drunk. Is this true?
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3k views

Do we need to fast before thyroid testing?

As the title suggest is it necessary to fast before thyroid test. Last week I have given thyroid test in my office. They conducted T3,T4 and TSH testing and my result came as thyronormalcy. I didnt ...
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4k views

Is wrist cutting fatal?

I think we've all heard the stories about people who attempt to commit suicide by slitting their wrists. It's even the first listed method of suicide on Wikipedia. Does it work? There have been ...
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5k views

Can you cause mosquitos to explode from drinking too much blood by flexing your muscles?

I have heard several times as I've grown up that you can flex your muscles to make mosquitos get stuck and explode. Looking around the web, I find several sources claiming the same. Q: If you flex ...
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835 views

Does donating blood boost the immune system?

I read a claim that not only is blood donation safe, it actually boosts the immune system. As the source (a Red Cross-affiliated blood donation drive) is not neutral, I'm skeptical of this. Is it ...
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Does cows' milk contain blood?

Someone in my Twitter feed said today: TIL starbucks put ground up insects in stuff, and milk has blood in it. The ground up insects part is true for now, but I'm not sure about the ...
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2k views

Does St. Januarius' “blood” congeal and liquefy?

Saint Januarius is famous for the reputed miracle of the annual liquefaction of his blood, which, according to legend, was saved by a woman called Eusebia just after the saint's death. Thousands of ...
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0answers
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Is folic acid supplementation beneficial for someone with Thalassemia Minor?

Thalassemia is an group of inherited blood disorders where the gene for hemoglobin production is defective. Specifically, Thalassemia Minor is where the defective gene is inherited from only one ...
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Is deoxygenated blood blue?

I have encountered many people in my life that believe that your blood is blue until it hits the air and only then it turns red. The blue color of our veins is also explained the same way, as the ...
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Does blood type affect what type of food is best for you?

I remember that, a few years ago, my parents were told that different blood types need to eat differently. From a quick look online, it seems to be called "Eat Right For Your Type." It claimed that, ...
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Can blood group affect behavior?

In Japan, blood group is believed to have ties with behavior. Is there scientific evidence for it?