1 The more alcohol you drink, the greater your risk of developing breast cancer. 2  If you choose to drink alcohol â including beer, wine or liquor â limit yourself to no more than one drink a day. 3  Don't smoke. 4  Accumulating evidence suggests a link between smoking and breast cancer risk, particularly in premenopausal women.he following are steps you can take to lower your risk: 1  Limit alcohol. 2  Don't smoke. 3  Control your weight. 4  Be physically active. 5  Breast-feed. 6  Limit dose and duration of hormone therapy. 7  Avoid exposure to radiation and environmental pollution.
When extending an arm into a straight position, the triceps is considered the agonist muscle and the biceps is the antagonist, since the triceps muscle generates the motion to straighten the arm and the biceps contracts to return the arm to the original position.
The pectoralis muscles -- major and minor -- attach your ribs to the front of your upper arm. These muscles lift your arm forward, bring it in toward your body and rotate your shoulder inward. The coracobrachialis is a deep muscle on the front of your upper arm that moves your arm forward.