Brain Stem. -connects brain to spinal cord. -made up of the midbrain, the pons, medulla. -act as pathways connecting various parts of the brain with each other. -controls involuntary actions.
One new study found that baby boomers (ages 49 to 67 in 2013) are living longer than people roughly 20 years older, but are not healthier.1 While they are less likely to smoke, have emphysema, or a heart attack, they are more likely to be obese, have diabetes, or high blood pressure than the previous generation at similar ages.
The 65-and-older population. 1  The nationâs 65-and-older population grew from 44.7 million in 2013 to 46.2 million in 2014. 2  This group, which now contains the oldest four years of the baby boom generation (born between 1946 and 1964), is 21.7 percent minority, less diverse than younger age groups.