Riley Hospital for Children Flu-related Visitor Restrictions

The flu season is off to an early and strong start. Flu activity has been reported as widespread in at least 46 states, including Indiana. Riley Hospital for Children at IU Health is currently restricting visitors to protect patients and prevent further spreading. Learn more.

Book Appointment Online with select physicians.
Request Appointment Online to schedule with one of our coordinators.
1.888.IUHEALTH for
Same-Day Primary Care Appointments.
If you are experiencing a medical emergency, please call 9-1-1.

The Speed of Our Body Compared to IndyCars

Blog The Speed of Our Body Compared to IndyCars

There’s no doubt in any IndyCar fan’s mind that these are impressive, powerful and fast machines. Average IndyCar speeds reach approximately 227 mph, though some racers have posted even faster laps. It’s expected that the average speed will soon be 230 mph.

But what you might not realize is that the human body is as powerful, if not more powerful than an IndyCar, and can boast some impressive speeds of its own. Take a look.


Human coughs come in all sorts of varieties, but they all happen the same way. A cough starts with a deep breath, followed by a compression of air in the lungs. The diaphragm then pushes a burst of air out of the body. Coughs also force out thousands of tiny saliva droplets at speeds of up to 50 mph.


Sneezes, similar to coughs, produce thousands of saliva droplets that are expelled from the body. Sneezes, however, produce far more droplets – approximately 40,000.

The larger, heavier droplets quickly fall to the floor, but the lighter droplets can remain airborne indefinitely as they are caught up in a room’s airflow. This is why it’s important to cover your mouth when sneezing to prevent the spread of germs. Regardless of weight or size of the droplets, a sneeze can travel at speeds of 200 mph or greater.

Blood flow

The human heart beats 2.5 billion times in a lifetime and is responsible for blood flow within the body to all of our vital organs. For adult males, five quarts of blood continually pump through the body, and for adult women, quarts of blood are flowing. On average, at walking speed, blood flows at an average speed of three to four mph.

There are a variety of other body processes and velocities that can be measured, but the fact remains that none are quite as fast as an IndyCar. Sneezes come in a close second, though.

To learn more about body processes and to make sure your body is in top form, contact your primary care doctor. Learn more health information about your child's development & well-being.

Viewing all posts in …

Other Blog Posts That May Interest You

Blog Hospital Art Show Sets the Stage for Healing

Hospital Art Show Sets the Stage for Healing


For pediatric patients and their families, the weight of an unexpected medical diagnosis can be...

Continue reading
Blog Marco Andretti Shows Up In Red Suit Bearing Gifts at Riley

Marco Andretti Shows Up In Red Suit Bearing Gifts at Riley


He was perfectly dressed in a red and white suit. The facial hair? He admitted, he should have grown...

Continue reading
Blog Elf on a Ledge

Elf on a Ledge


Elves Surprise Kids at Riley at IU Health One by one, children filed into playrooms at...

Continue reading

Viewing all posts in …