Have you ever craved a salad, I mean really craved a salad because you've been eating a lot of freeze-dried meat and beans?
Astronauts who spend months on end in space sure do miss their greens. That's why NASA is embarking on a program to get astronauts growing their own food. First stop is the International Space Station and a vegetable production system called Veg-01, or "Veggie."
School nurses today do a lot more than bandage skinned knees. They administer vaccines and medications, help diabetic students monitor their blood sugar, and prepare teachers to handle a student's seizure or asthma attack, among many other things.
"Chronic disease management is what school nurses spend most of their time doing," says Carolyn Duff, president of the National Association of School Nurses. "We do care for students in emergencies, but we spend more time planning to avoid emergencies."
The Baobab Resort sits on the south coast of Kenya's Mombasa Island, but it has some of the homey feel of an old Catskills resort.
On a recent day, sounds from outside trickled into the resort's largest conference hall: children enjoying their last hour of daylight on the beach, staff members singing tunes from The Lion King, warming up for their evening show.
When a saw-scaled viper sinks its fangs into a person, it isn't pretty.
Toxins attack the victim's capillaries. The body launches an immune defense, as it would with an infection. But that takes time — too much time. The venom quickly dissolves the tiny blood vessels, and the body runs out of clotting materials before it can repair them.