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Are all blood types needed for for donation?
health.howstuffworks.com/human-body/systems/circulatory/question593.htm
I would like to donate blood and keep hearing about which blood types are needed most. How do human blood types work?
How Prenatal Testing Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/prenatal-testing.htm
During a pregnancy, different kinds of prenatal testing are an important part of the process. See how prenatal testing protects both the mother and child.
What makes your arms, legs and feet fall asleep?
health.howstuffworks.com/human-body/parts/question552.htm
What makes your arms, legs and feet fall asleep? Basically, your nerves go a little haywire when your limbs fall asleep. Learn why.
What happens when pregnant women smoke?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/question551.htm
Pregnancy and smoking should never be mixed because of the harm it can cause to the developing baby. Learn more about pregnancy and smoking.
How Your Kidneys Work
health.howstuffworks.com/human-body/systems/kidney-urinary/kidney.htm
The kidneys perform several important tasks. Learn about kidney processes and how the kidneys maintain water volume and balance and regulate blood composition.
Can nasal sprays be addictive?
health.howstuffworks.com/mental-health/question546.htm
I can't live without my decongestant spray! How can nasal decongestant sprays be addictive?
CPR: What You Need to Know
health.howstuffworks.com/medicine/first-aid/cpr.htm
CPR can save lives, and you don't have to be a doctor to learn how to give CPR. Learn CPR technique with diagrams and step-by-step explanations.
Chocolate Breakfast Cereals Claim to Be Healthy. But What Sounds Too Good …
What's with the recent spate of new chocolate breakfast cereals that also claim to be healthy? Read this HowStuffWorks Now article to learn more.
Tattoos: Telling a Story of Self-esteem?
health.howstuffworks.com/skin-care/beauty/skin-and-lifestyle/tattoos-telling-story-self-esteem.htm
A study investigating tattoos and well-being in college students found a link between self-esteem and tattoos. Learn more at HowStuffWorks Now.
When It Comes to Q-Tips, We Do the One Thing We're Not Supposed to. Why?
health.howstuffworks.com/human-body/systems/ear/cotton-buds-in-ears-why.htm
We humans act in our own self-interest, but when it comes to cotton buds and ears we do exactly what science says not to. And yes, your doctor can tell.