Blood vessels are lined with what muscle?

The term blank refers to a broad variety of practices that include techniques designed to promote relaxation and harmony with your environment.

Pam currently runs on a track an hour a day, three days a week. how can she increase the intensity of her runs? start running five days a week start running in hilly areas or trails switch to walking six miles each day add 20 minutes to each run

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production