The Human Body: Life Story 生命物语-1

There is one thing that everyone on earth has in common. We all live, eat and breathe within the human body. For two years I’ve been exploring this unique dwelling place. I want to show you what I'v

The Human Body: Life Story 生命物语-5

They are heart cells, and several million of them working at once is a heartbeat. In this case, it's your head that rules your heart as it's your brain that decides what rate your heart should be beat

VOA慢速英语2011--Doctors Lack Many Ways to Treat Radiatio

This is the VOA Special English Health Report. Countries across Asia and beyond are reporting small amounts of radiation from the disabled nuclear reactors in Japan. But officials say these levels are not a threat to public health. On Tuesday, Chines

US Researchers Discover New Breast Cancer Gene

Broadcast: Jan 21, 2003 U.S. researchers have discovered another breast cancer gene that may provide a new point of attack against the disease. The 1) molecule is common to many types of breast cancer

万花筒 2008-07-06&-07-07 大麻治痤疮

Well, most of us know that marijuana is an illegal mind-altering substance. But could it also be a miracle cure for everything from acne to skin cancer? According to a new study, it's possible. And the good news is, you don't even have to smoke the d

英语听力文摘 English Digest 557、为何我们的汗水不好闻？

Why Does Sweat Smell So Bad? Our bodies have two main kinds of sweat glands. The sweat glands that are distributed over most of the body produce an innocent, clear sweat thats more than ninety-nine percent water. As this watery sweat rinses your skin

SCIENCE IN THE NEWS - Acne, Eczema and More: Scratching the

SCIENCE IN THE NEWS - Acne, Eczema and More: Scratching the Surface on the Rough Life of Skin By Caty Weaver Broadcast: Tuesday, November 29, 2005 (MUSIC) VOICE ONE: I'm Sarah Long with Bob Doughty, a

专业术语—口腔生理学术语B(英文详解)

Basal lamina - a term used to describe the different layers which make up the basement membrane. These different layers of the basement membrane, the lamina lucida and lamina densa are only visible wi

专业术语—口腔生理学术语M2(英文详解)

Microbiology - the study of the microscopic forms of life. Microfilaments - are the smallest filaments of the cytoskeleton. The filaments are made of hundreds of actin molecules, stacked in a line. Th

SSS 2009-03-17

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy

SSS 2009-01-02

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an

新托福阅读模拟试题

Hormones in the Body Up to the beginning of the twentieth century, the nervous system was thought to control all communication within the body and the resulting integration of behavior. Scientists had determined that nerves ran, essentially, on elect

Skin Disorders

Broadcast: May 6, 2003 By Caty Weaver VOICE ONE: I'm Sarah Long with Bob Doughty, and this is the VOA Special English program, SCIENCE IN THE NEWS. VOICE TWO: Today, we talk about some disorders of th

VOA慢速英语 2007 0403b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Today, we will tell about some disorders of the skin, and ways to treat them. (MUSIC) VOICE ONE: Skin. It is the largest organ of the b

VOA标准英语2011--New Malaria Vaccine Passes Safety Test

New Malaria Vaccine Passes Safety Test The fight against malaria may have taken a promising step forward with the latest tests of a new kind of vaccine, which aims to keep people healthy and prevent the infection from spreading. Most malaria vaccines

TED演讲:压力会造成青春痘吗(2)

The hypothalamus, the master controller of your hormones, releases something called corticotropin-releasing hormone. 下视丘是控制荷尔蒙的主宰，它会释放一种叫促肾上腺皮质释放素的物质。 This triggers the pituitary gland

身体六大部位暴露你的年龄

We all try to strike that balance between aging gracefully -- and not looking as though we're older than we really are. With age, your skin thins and grows less elastic. As a result, wrinkles, age spots and skin tags become more common. Generally spe

人体为什么会出臭汗?

What's sweat? 什么是汗水？ Your body works best when its temperature is about 37? Celsius. When your body gets hotter than that, your brain doesn't like it it wants your body to stay cool. So the part of your brain that controls temperature, ca

Healthy Children Not Growing Properly May Lack This

From VOA Learning English, this is the Health Lifestyle report. Most healthy children between the ages of four and 10 grow about five centimeters a year. Parents often notice this growth by how quickly their children grow out of their clothes and sho

TED演讲:出身决定命运?（1）

I want you to imagine two couples 我希望大家设想一下，两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天，相同的时刻 each conceiving a baby -- okay? 每对怀上了