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.
Muscles that Move the Arm. Nine muscles cross the shoulder joint. Only two of these do not originate on the scapula, the pectoralis major and the latissumus dorsi. Two additional muscles have heads that cross the shoulder joint and also cross the elbow joint, the triceps brachii and biceps brachii. These two muscles will be treated in the next group.