'HIIT workout is the future of fitness because the medical science has come out with lot of discoveries of  benefits  such as increase in  norephinephrine production which is associated with higher cognitive abilities and general reduction in overall stress levels. Also there is increase in mitochondrial stimulation and you are training at 80% of your max heart rate. These increase the overall ventricular contraction ability and facilitate efficient oxygen consumption and retention. Go get some HIIT today, puke in 10 min and you wont regret it' 

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