100 word count each with a reference
As we age the surveillance by immune system declines and bacteria viruses and tumor cells are not eliminated as effectively. On the other handover-reactiveimmune system is basis for autoimmune diseases commonin olderpeople and maycontributeto arthritis Alzheimer’sdiabetes.
Should scientists try to change the immune response in older people or is immunosenescence (aging of immune system) beneficial?
We lose 0.5-1% of skeletal muscle mass and strength each year after age of 25. Muscle fibers are replaced with fat and excess connective tissue.Many of the changes result more from inactivitythan from aging. Less than 10 percent of Americans exerciseregularly and the most sedentary group is older than 50 years of age.
Imaginethat your mom/dad/neighborneeds to exercisemore regularly. Devise an exercise plan for a healthy 65 year old.