Bees, wild and domesticated, are in big trouble. Bee colonies are dying off at alarming rates, and the cause isn't clear. Pesticides, habitat loss, disease, there's a laundry list of likely culprits. We rely on these tiny pollinators for...

Many people in Britain now fear hospitalization almost as much as injury or illness, due to a rising rate of hospital-related staph infections. This program examines the threat posed by MRSA, or methicillin-resistant Staphylococcus...

Could your teeth be at risk from diabetes?

Could your teeth be at risk from diabetes?

Howcast - Learn how to test for and treat sexually transmitted diseases from sexpert Jane Bogart in this Howcast video.

Howcast - Learn how and when HIV becomes AIDS from sexpert Jane Bogart in this Howcast video.

Howcast - Learn what an HIV rash is and how to recognize it from sexpert Jane Bogart in this Howcast video.

Howcast - Learn what you need to know about Group B Strep (GBS) and labor and delivery from childbirth expert Elizabeth Mangum-Sarach in this Howcast video.

Howcast - A nice, hot cup of tea isn't just soothing; some varieties have health and diet benefits. See which brew might be right for you.

Help your pet avoid ear infections and expensive trips to the veterinarian by keeping their ears clean.

Eggs recalled after multistate outbreak of salmonella infectionsSource The Independent

The lymphatic system consists of a complex network of lymphatic vessels, glands or nodes, and organs, such as the spleen and thymus, extending throughout the body. Through it flows a fluid called lymph. The lymphatic system has three...

Drugs used to treat bacterial infections by killing or inhibiting the growth of bacteria.They do not work against viruses or fungi, and so cannot treat many other infections.
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Discover how barrier methods of contraception can not only prevent pregnancy but stop the spread of sexually transmitted infections. Biology - Being Human - Learning Points. Barrier method contraceptives prevent the sperm from reaching...

Alcohol is a naturally occurring poison. What are the risks and health problems people can suffer from alcohol use or abuse? Biology - Healthy Living - Alcohol is a toxin and is produced by fermenting yeast. Alcohol damages both the...

The number of infections spread through sexual contact is increasing globally. Why is this? What are STIs? And why do some people not know when they've caught one? Biology - Healthy Living - Sexually Transmitted Infections (STIs) are...

What is cystic fibrosis? Find out what the symptoms are and how it is caused. Biology - Cells And DNA - Learning Points. Cystic fibrosis is a serious progressive, genetic disease that affects the whole body. Cystic fibrosis is caused by...

Discover how a disease can spread from person to person.
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Wrapping up the innate immune system we have one more cell type to examine, and that is innate lymphoid cells. These are a family of lymphocytes that are considered to be the innate counterparts of T cells from the adaptive immunity,...

Epidemic, Endemic, and Eradication Simulations

This video explores five fun facts about lymphatic system.

Jessi talks about Ash's rescue from a neglectful home, reveals that not every story has a happy ending, and how important it is that the animals Animal Wonders rescues become ambassadors for their species.

This video explores five fun facts about viruses.

We just went over some basics regarding virus-cell interactions, but we have a little more to discuss. We need to understand some more details regarding how viruses interact with multicellular hosts, such as humans. Let's take a look!