Cross contamination happens when bacteria is transferred to another
Decrease the intenseness of the stepper machine so his heart rate doesn't go over his target heart rate zone.
Hi !
Stimulants, such as cocaine, nicotine, and amphetamine, <em>increase the activity of the sympathetic nervous system, the central nervous system, or both. </em>
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(psychoactive drugs :
Drugs that act on the nervous system to alter consciousness, modify perception, and change mood.)
