When someone is making cardiovascular gains through aerobic activity, they are increasing the amount of to the heart and lungs

How will health most likely be affected if you follow the recommended guidelines for sleep rest and physical activity

If you are having a hard time lifting something, you should arch your back. a. true b. false

Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?