How do our bodies and minds change from early to late adulthood?

How do our bodies and minds change from early to late adulthood?
What are the factors that affect our well-being as middle aged and older adults?
Why are some people attracted to members of their own sex whereas others are attracted to members of the opposite sex?
How do memory and intelligence change as we age?
Does an infant’s temperament shape his/her cognitive and socio-emotional development?
Are babies pre-wired for survival?
Are adolescents more likely to engage in risk-taking behavior than older adults?
Can physical exercise affect cognitive performance in old age? Consider the time of occurrence of physical exercise (i.e., earlier in life or during old age) in your answer.
Are there personality traits related to longevity?