The heart is the hardest working muscle in the human body, pumping out oxygenated, nutrient-rich blood with every beat. But no matter how hard this muscle works each second, it still needs exercise to stay strong.
Learn about ongoing space biology research.
Join Neil deGrasse Tyson and Dr. Daryl Hoffman, a cardiac surgeon from Beth Israel Medical Center in NYC, as they discuss the ins and outs of the physical capacities the human heart has.
In this activity, students use the average adult’s number of heartbeats per minute to predict how many times the heart would beat during various lengths of time.
This lesson emphasizes the connections between science and mathematics by using a performance, or authentic, assessment format.
Is just a bit of alcohol dangerous?
Arthropods, including bumblebees have a heart that’s like a straw running down their back. Their open circulatory system bathes their organs with blood.
Pediatric cardiologist Dr. Jane Crosson from Johns Hopkins Hospital answers questions about the heart.
What physical activity will increase your heart rate?
