Jessica's grandmother has begun to notice her hands and feet become numb more often when she sits for long periods of time. in what types of activities should she participate that would most benefit her cardiovascular system?

The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis. so maybe walking idk hope this helps

Running or sum sort of exercise so that their blood flows consitantly

The answer would be fracture.

It would be 23 beats per second