Physical Developments

During the ages 20-40 is a period known as young adulthood. This is the period of maximal physical performance for most young adults.

General Physical Factors

• Bones and muscles are completely developed 
• Coordination and dexterity peak
• Visual acuity and sharpness of vision are fully functional
• Sexual organs are mature, making conception and child bearing maximally possible
• Physical recovery from injury and minor assaults is still good.
• Body proportions are established

Health Status 

Most young adults are quite healthy and find they get fewer colds and respiratory infections than during childhood. Death from disease is relatively rare vs. accidental death. To determine whether you are maintaining quality health and creating a sense of occupational balance during this time, genetic and behavioral factors must be examined.

Direct Influences on Physical Health

• Diet and Nutriton
• Obesity
• Physical Activity 
• Sleep Patterns 
• Smoking
• Alcohol
• Drug Use

Indirect Influences on Health

• Socioeconomic Status 
• Education
• Relationships 

Healthy relationships, active engagement, higher income, and education generally correlate with lower mortality rates and better overall health but they do not have a direct affect. 

Mental Health

• Incidence of psychological disorders increase during young adulthood
• Transitions bring overwhelming stress
• 50% of Americans have a mental illness sometime in their lifetime
• 3/4 of issues start by age 24

(Papalia, 2009, p. 423-431)

Physical Development and Occupational Balance 

Although physical performance is at its maximal capacity, influences on health can attribute to a sense of imbalance in the young adult's occupations. To remain occupationally balanced young adults should pay attention to nutrition and exercise, for these lifestyle choices that they select now will follow them in adulthood. Taking steps to sleep 7-8 hours a night, avoid smoking and using drugs, and remain socially integrated and engaged in their social relationships will provide them with better quality health and a sense of physical balance.

"Imbalance can be suggested as one cause of the production of excessive stress hormones — cortisol and catecholamines, which can lead to artery damage, cholesterol buildup and heart disease" (Wilcock, 1997, p. 19).