Research shows that HIIT training improves not only your heart rate, but also your heart’s ability to contract during maximum exertion. This gives your body much higher “cardioprotection” AKA defense against heart disease. Studies have also shown that HIIT correlates to a much lower rate of coronary heart disease as compared to moderate exercise programs.
HIIT increases your total oxygen capacity and strengthens your breathing muscles. The benefits of improved breathing are almost to many to count, but they include increased alertness, increased energy, and better mood regulation. These things are all important to not only your long-term physical health but also your mental health.
Now here you might think that HIIT prevents diabetes just as a side benefit of shedding excess fat. While that is true, studies have shown that HIIT also improves your insulin sensitivity and glucose metabolism. Those are both crucially important for stopping the onset of diabetes.
Of course, I can’t resist mentioning the incredible fat loss power of HIIT, if only because the science behind it is so incredibly cool. With a proper HIIT workout, you can increase your metabolism speed for several hours after your workout, even while you’re resting or sleeping!
Managing Cholesterol Levels
Research shows that HIIT improves HDL cholesterol levels (AKA the “good” cholesterol). The research has shown mixed results for LDL cholesterol control, but many individuals report seeing huge drops in LDL cholesterol after starting their HIIT programs.
Reducing Blood Pressure
While the blood pressure effects of HIIT take a bit longer than the above benefits (typically a year or more) HIIT has proven capable of taking individuals with elevated blood pressure back down to a healthy level. Like I said before, it’s best to approach HIIT as a long-term commitment if you want to make the most out of it.
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