Cardio

https://trainelite.com/tone-and-cardio-boxing/

After I arrived to my first boxing class, I was immediately asked to pick up a jump rope and begin. Although I was skeptical, I quickly discovered that boxing requires a very high level of endurance and stamina. Boxing requires you to constantly move around, whether that be when you're moving forward for a punch or weaving away from an attack. Here are some benefits of such high-intensity cardiovascular exercise.

1. Stronger Heart
Such intense cardio makes your heart beat much faster, pumping out even more blood. Over time, your heart rate will decrease and therefore your heart will not need to pump out as much blood. Overall, your heart will be much healthier and will not have to do as much work to keep your body functioning.

2. Lower Recovery Time
Especially for boxing, your body will build up its strength and speed through the cardio workout. And so when you get hit or you find yourself out of breath needing a break, you will find that more cardio will help reduce the amount of time you need to get back out there.
3. Increased Hormone Health
Cardio increases the production of many beneficial hormones, one of which is dopamine, or the "happy" chemical. The release of these hormones will only make you feel better both right after a workout and in the long run.

4. Increased Metabolism
In addition to increasing your heart rate, cardio also increases all the other processes in your body, or your "metabolism." Doing so will allow your body to function much more smoothly.
5. Helping with Diabetes
Those dealing with diabetes often find that cardio helps their bodies to deal with glucose. The increased metabolism is the reason for this change, and so therefore their bodies can control blood sugar levels.


Sources:
-http://www.fitday.com/fitness-articles/fitness/exercises/boxing-fitness-training-as-a-cardio-workout.html
- https://www.youtube.com/watch?v=1eWhgF8lMyQ
-http://www.bodybuilding.com/fun/sclark85.htm
-http://www.self.com/fitness/2012/07/cardio-exercise-benefits-slideshow#slide=1