Since someone would be performing wind sprint activities, it is guaranteed when performing any activity is to get better overtime so I would say to "work above your target heart rate"
Initially, I was going to say exhaustion, however with further research, I found that the first stage would be alarm. So your answer is:
<span>The first stage of the body‘s reaction to stress is known as the alarm stage
A. alarm
I hope this helped you, have a nice day
~ Karma
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<span>Coolant is checked when leaking purple fluid . Generally coolant is green and orange and in some cases it is in purple color. You can smell the coolant leaking. There are three common causes for coolant leaking. Those are Leaky Radiator Cap or Internal Leak or External Leak.Coolant leaking Sweet Smelling (toxic). If your car is leaking coolant, it will run normally until the coolant level gets too low.</span>
Exercise every day, eat a more plant based diet, drink more water, eat less sugar.