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2 Cardio: It Does Your Blood Vessels Good

Just as peanut butter needs jelly, a high-functioning heart needs a network of capillaries to make the perfect tag team. Performing steady-state cardio helps add more capillaries to the muscle tissue than lifting alone.

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This is a big deal for two reasons:

  • Your muscle tissue gains the capacity to perform at a higher level, thanks to being able to receive more oxygen and nutrients.
  • Your muscle tissue is able to recover more quickly, because it is also able to clear metabolites and waste products faster.

This enhanced ability to recover is crucial, especially for lifters who do high-intensity training sessions like CrossFit very frequently.

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