Gathering information and data, since it refers to the key word: <em>timeline</em>.
Because at some point our organs get tired and weak from all the years of pumping and circulation etc. so at some point our bodies just can't do that forever...
The product or ingredient is Nicotine
The table below describes two main types of exercise.
Type of Exercise
Example::
_ _ _ cardio_ _ _ jogging
anaerobic lifting weights
answer is cardio exercise