Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV)
The elderly because naturally with old age your body loses its ability to maintain vitamins and minerals.
Working out , paying bills on time, saving money, doing homework on time
Systole period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle
What please attach a image and clarify your question