Search Results |

Your search for "" returned 3,608 results

How many calories does a person need daily?

health.howstuffworks.com/wellness/food-nutrition/facts/question457.htm

Daily calorie needs vary significantly from person to person. Learn how to calculate the number that’s right for your body.

How Refractive Vision Problems Work

health.howstuffworks.com/human-body/systems/eye/vision-refractive.htm

Millions of people have refractive vision problems -- when the eyes get blurry or can't focus on an object. Learn about four major types of refractive vision problems.

How Fast Does Hair Grow?

health.howstuffworks.com/skin-care/hair-care/scalp-treatments/question251.htm

Anyone who's ever regretted a haircut has probably wondered how fast their hair will grow back. It's a good question, with a not-so-simple answer.

How can an egg carton claim that the contained eggs have less fat and more vitamin E?

health.howstuffworks.com/wellness/food-nutrition/vitamin-supplements/question304.htm

I recently bought a carton of eggs that claimed, "These eggs are high in Vitamin E, contain 100 mg of Omega 3, and have 25% less saturated fat than regular eggs." How can you get chickens to lay these special eggs? And how can you tell which eggs have these properties without cracking them open?

How do antibiotics work?

health.howstuffworks.com/medicine/medication/question88.htm

Where do antibiotics come from, and how do they fight bacteria?

How does the sense of smell work?

health.howstuffworks.com/mental-health/human-nature/perception/question139.htm

What causes smell? When I walk into a bakery, I smell the bread. What actually has happened? Do objects give off pieces of matter? What has entered my nose to cause the sensation of smell?

How long can a germ live in a room?

health.howstuffworks.com/diseases-conditions/infectious/question235.htm

How long can a germ live in a room? My son had a friend over, and the friend was coughing all over the house. How long can his germs infect people?

3571 - 3580