When exercising, do your arteries constrict or dilate?

If an online school program (i.e k12, ecot) assigns me a computer, would it be ok to use social media on it? would i get in trouble? i am not really sure from reading their terms and such.

Lifestyle diseases are caused by a combination of

If mary has stopped her resistance training for three weeks, once she continues, she should work out harder to get back in shape keep her workout the same as before her break reduce the weight during the workout session reduce the rest times between sets