I believe marijuana is the most common illegal drug found in the United States.
Smaller veins called venules then go back into the larger veins that pushes the blood back to the heart
Answer:
"Principle helps you create a workout plan that will be more effective in reaching your fitness goals. F.I.T.T. stands for frequency, intensity, time, and type of exercise. These are the four elements you need to think about to create workouts that fit your goals and fitness level."
Explanation:
I think heat. I could be wrong tho
