Lifespan Presentation

1. 1
The Physical and Biological Aging Journey from birth to late
adulthood.
LIFE- SPAN
DEVELOPMENT
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

2. 2
Body Growth
Patterns develop that include
height and weight
Puberty
Transitions from childhood to
Adulthood
Physical Development and Biological Aging
Adulthood
Early, Middle and Late
Adulthood
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

3. 3
Infancy
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4. Infancy Stage of Aging (Biological Changes)
● To avoid sleep issues infants, need
consistent sleep routines and avoid high
screen time.
● Plenty of nutrients and in a loving, safe
and caring environment.
● Infants receive nutrients from human
milk or formula in the 1st 6 months
● Its recommended infants receive 14-16
hours of sleep & 11-14 hours for one- to
two-year-olds.
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
● Average Newborn in the U.S. is 20 inches
long & 7 ½ pounds.
● Gain 5-6 ounces per week in first month of
life.
● At 4 months most infants have doubled
birth weight.
● At 1 year old they have tripled their birth
weight.
● By age 2 they have reached 1/5 of adult
weight and ½ of adult height .

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Infancy Stage of Aging (Biological Changes)
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
Yadao, P.C. (2005, October 3). Tracking Infant Growth: Average Baby
Weight and Height by Month. Parents.com.
https://www.parents.com/baby/development/physical/charting-babys-growth
/

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Childhood
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Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

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Childhood Stage of Aging
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
During the childhood years, both girls and boys experience numerous bodily changes. In the early years,
growth patterns vary due to heredity and environmental influences. At this time, height is often influenced by
ethnic origin and nutrition. As their bodies lengthen, boys gain more muscle mass, and girls tend to gain more
fatty tissue. For those children who are unusually short, congenital factors, growth hormone deficiency,
maternal smoking, or emotional difficulties are thought to be the culprit for the delay in growth. During the
elementary school years, children can average a 2–3-inch increase in height and gain 5-7 pounds per year.
Lifestyle changes have altered the way families eat, and this has influenced skeletal growth, body shape,
and susceptibility to disease. Diabetes, sleep apnea, and high cholesterol are a few of the concerns related to
this problem. Healthier food choices, exercises, and less screen time are the recommended interventions. When
these suggestions are implemented, children are likely to do better in school, score higher on tests, and are less
likely to have speech delays. (How Nutrition Impacts Early Childhood Development | Study.com, 2019)
A good night's sleep for a child is an important part of development. Sleep at this age should be
between 10-13 hours per night. One study indicated that children with better quality parent interactions had
longer sleep durations than those with less advantageous interactions with their parents. Nutrition, exercise,
and sleep are foundational elements to the growth and success of a child at this stage of development.

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Childhood
Canadian Family Day
● Bodies lengthen: boys gain more muscle mass
and girls more fatty tissue
● Height increase of 2-3 inches per year
● Weight gain of 5-7 pounds per year
● 10-13 hours of sleep recommended
● Better sleep results in better parent
interactions
● Nutrition influences skeletal growth,
body shape, and susceptibility to
disease
● Good nutrition can increase test
scores, improve performance in
school, and lower the chances of a
speech delay (Study.com, 2019)

9. Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
Adolescence
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Adolescence is a period of great change physically, biologically, cognitively, and psychologically. This is the stage when
children begin puberty. Adolescence is divided into three stages 1. Early adolescence (10-13) 2. Middle adolescence
(14-17) 3. Late adolescence (18-21).
Physical changes occur most during early and middle adolescence
Growth spurts 25% of growth in height occurs during puberty (healthychildren.org, 2014). Increased muscle mass,
strength and coordination improve. These are followed by changes in genitalia. Boys have increase in size of penis
and testicles girls breasts begin to develop, pubic hair begins to grow, followed by underarm hair, and acne. Body
odor also becomes an issue.
Biological changes
The endocrine glands release hormones into the bloodstream. The two main hormones are testosterone and
estradiol. The endocrine system is responsible for growth and skeletal development (Santrock, 2023)
Cognitive changes
Early adolescents still think in black and white, good and bad and are very self-centered. Where as, middle
adolescents can see the big picture but, their thought process is still not as mature as an adult. The frontal lobe
has not fully developed yet. During late adolescence is when the brain fully develops and impulse control is
present. (Allen, B. Waterman, H., 2019) .
Adolescence signs of aging

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Psychological changes
During early adolescence children often feel self-conscious and concerned what others think and begin
To seek independence and want privacy. Puberty may cause anxiety for some. Middle adolescence is a
time when peer pressure is the greatest. Appearance is more important, teens often want more
distance from from their family and spend more time with friends. Late adolescence has the least
changes. Puberty is complete by this time. They have reached adult height and now have established a
sense of identity
Adolescence signs of aging cont.

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AGE
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
PHYSICAL
BRAIN

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EARLY ADULTHOOD
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Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

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Early Adulthood
Canadian Family Day
● Physically mature by early adulthood
● Full height, individuals tend to be healthy and
energetic in early adulthood
● The peak of their physical capacities, often
between the ages of 19 and 26 (Santrock,
2020)
● The brain starts to reach its maximum in early
adulthood
What you might see in Early Adulthood
- Establish careers
- Intimacy vs Isolation (Erikson, 1994)
- Finding a life partner
- Establishing home and family
- Developing social circles

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Middle
Adulthood
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Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

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Middle Adulthood
Middle Adulthood age or the midpoint of life is getting harder to pin down due to medical discoveries and people living healthier
longer lives. Statistically the middle of life today is about 39.5 years of age. What we think of as middle age is anywhere from
45-65 years of age (Santrock, 2023).
Middle-age careers have been found to effectively peak during middle age because of, “increase motivation, work experience,
employer loyalty, and better strategic thinking.” (Nygard, C-H., 2013). Middle adulthood is a time of, “..expanding personal and
social involvement and responsibility.” Middle adults are inclined to take the role of assisting the next generation in becoming,
mature individuals as well as helping them reach and maintain satisfaction in a career (Santrock, 2023).
Research in brain development has proposed changes that take place in middle adulthood. Fluid intelligence, or abstract
reasoning, has been theorized to decrease after it peaks in one’s late 20s. Crystalized intelligence or the ability to accumulate
information and verbal skills has been proposed to increase or remain stable during middle adulthood (Perera, A. 2020).
Middle age is a time when chronic disorders, with a slow onset and long duration, are increasing (Harris & Wallace, 2012). At
around age 50, 1-2% of muscle loss occurs in adults with bone loss accelerated during the 50s. Women’s rate of bone loss is
about twice that of a man’s (Santrock, 2023). Many middle-aged adults are more likely to die of an illnesses such as heart
disease and cancer.

17. 17
Mid 60’s through Death
LATE
ADULTHOOD
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Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

18. 18
CHANGES IN LATE ADULTHOOD
Physical Appearance
As we reach late adulthood, age spots, wrinkles, and loss
of muscle mass become more present due to weight loss
and lack of activity and exercise.
64-69% of men and women develop hypertension
between age 65-74%
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
Sleeping
Sleep patterns age for older adults as they go to
sleep earlier, wake up earlier and take naps
during the day. Sleeping can be more difficult
for those who face constant health issues and
take prescription drugs. Too much sleep can
cause adults to be less physical and effective
cognitive functioning.
Aging Brain
Life Expectancy
● Brain weight decreases 5-10%
● Brain volume decreases 15%
● Decreases in neurons, synapse, axons, and dendrites
● Decrease in prefrontal cortex leads to memory loss
● Spinal cord and brain slowing attributes to slow
mobility, IQ, and cognitive activities.
More adults are living longer and it is predicted to increase
in the future.

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Adults and families evolve, grow
and age throughout generations
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna

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References
Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna
Allen, B., Waterman, H. (2019). Stages of Adolescence Healthychildren.org.
https://healthychildren.org/English/ages-stages/teen/Pages/Stages-of-Adolescence.aspx
Harris, J.R., Wallace, R. B. (2012). The institute of medicine’s new report on living with chronic illness. Preventing
Chronic Disease, 9:12126.
How Nutrition Impacts Early Childhood Development | Study.com. (2019). Study.com.
https://study.com/academy/lesson/how-nutrition-impacts-early-childhood-development.html
Nygard, C-H. (2013). The ability to work peaks in middle age. Interview. Retrieved September 15, 2013, from
https://news/3-6759454.
Perera, A. (2020). Fluid vs crystalized intelligence. Simply Psychology.
www.simplypsychology.org/fluid-crystallized-intelligence.html
Santrock, J. (2022). A topical approach to lifespan development. (11th ed.). New York, NY: McGraw-Hill Education.
Yadao, P.C. (2005, October 3). Tracking Infant Growth: Average Baby Weight and Height by Month. Parents.com.
https://www.parents.com/baby/development/physical/charting-babys-growth/

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Diana, Eileen, Jasmin, Kimberly, Natalie, and Shawna