$29 for One Month of unlimited fat burning cardio classes at Live Free Crossfit ($150 Value)

Upper East Side

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$150 81% $121
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In a Nutshell

One month of unlimited high-intensity group training includes use of heart-rate monitoring equipment

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Registration required. Limit 1 per person, may buy 1 additional as a gift. Limit 1 per visit. All goods or services must be used by the same person. Customers must register for classes ahead of time. Valid only for Monday–Friday classes at 9am, 10am, 5pm, and 7pm; and Saturday classes at 10am and 11am. Cannot be combined with other offers or discounts. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

The Cardiovascular System: How Exercise Makes it Hum

Exercise can be a little tough when you start out. Take inspiration during your next workout by understanding the good it’s doing inside with Groupon’s whirlwind tour of the cardiovascular system.

The average person’s heart beats 100,000 times a day, pushing 10 pints of blood all the way to the tips of the toes and back through 60,000 miles of vessels. Along this route, that blood stops to do a great many errands. The heart pumps blood to the lungs to collect oxygen before sending it through the rest of the body via arteries, arterioles, and capillaries. Once the tissues have absorbed the oxygen and nutrients they need, they send the waste-filled blood back to the heart through the veins to be reoxygenated and start the process again.

Every time our heart beats, what we really feel is the opening and closing of valves that push the blood through the heart’s four chambers and out to the body. When we exercise or get scared by a shrub that looked like a huge dog for a second, our brains instruct the heart to beat harder to supply the body with what it needs to fight or run. As exercise enhances the muscles over time, it also improves the function of the entire cardiovascular system.

This happens in several ways. Although exercise makes the heart work harder in the short term, this ultimately causes the body to adapt, easing the heart’s everyday tasks. In response to muscles’ demand for more oxygen and compliments, the body actually sprouts new capillaries, while prompting existing capillaries to open wider. These increased channels help lower blood pressure, since blood now encounters less resistance on its way to the extremities. The heart also becomes better at oxygenating the tissues—red blood cells increase their numbers during intense exercise.

With its insistent knocking in our ribcage, you may think the heart’s role in all this would be hard to ignore. But the earliest anatomists didn’t hear its call so clearly. Galen and Hippocrates believed the liver produced blood and spread it through the body in a centrifugal manner; meanwhile, the veins contained air, which the lungs pushed to the tissues. They also assumed this was an open-ended system, with the blood and air gradually dissipating when it reached the ends of veins and arteries—a view that would hold for another 1,500 years.

Customer Reviews

Not for the faint of heart but the staff is great and you leave feeling like you got a real workout!
Naureen · March 3, 2016
I appreciate the staff, everyone is friendly and they do not over work you. I would say it's for all levels and I would definitely recommend! :)
Shaondria R. · January 5, 2016
AWESOME!!! If you're out of shape and would like to enhance your endurance and get active again. I highly recommend it. I sign up permanently to their Crossfit class and I can see the results in both strength and endurance.
Luis · December 28, 2015
Merchant Location Map
  1. 1

    Upper East Side

    8033 Biscayne Boulevard

    Miami, FL 33138

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