Infancy |
Physical |
Lifts head when on stomach |
2 months |
Developing neck strength. |
Infancy |
Cognitive |
Recognizes caregiver |
2 months |
Attachment development. |
Infancy |
Social |
Smiles at people |
2 months |
Social engagement begins. |
Infancy |
Physical |
Covers the mouth and nose with hands |
3 months |
Beginning of intentional movement. |
Infancy |
Cognitive |
Follows moving objects with eyes |
3 months |
Visual tracking improves. |
Infancy |
Social |
Laughs out loud |
4 months |
Increased social interaction. |
Infancy |
Physical |
Sits with support |
4 months |
Core muscle development. |
Infancy |
Cognitive |
Reaches for toys |
5 months |
Hand-eye coordination improves. |
Infancy |
Social |
Responds to own name |
5 months |
Recognition of identity. |
Infancy |
Physical |
Rolls over in both directions |
6 months |
Increased mobility. |
Infancy |
Cognitive |
Imitates sounds |
6 months |
Language skills start to form. |
Infancy |
Social |
Cries differently for different needs |
7 months |
Communication begins. |
Infancy |
Physical |
Sits without support |
8 months |
Balance and core strength develop. |
Infancy |
Cognitive |
Explores objects with hands and mouth |
8 months |
Sensory exploration. |
Infancy |
Social |
Waves bye-bye |
9 months |
Understanding social gestures. |
Infancy |
Physical |
Pulls to stand |
9 months |
Strength in legs increases. |
Infancy |
Cognitive |
Finds hidden objects easily |
10 months |
Object permanence develops. |
Infancy |
Social |
Shows fear of strangers |
10 months |
Social-emotional development. |
Infancy |
Physical |
Takes a few steps without holding on |
11 months |
Starting to walk. |
Infancy |
Cognitive |
Says 'mama' and 'dada' |
11 months |
First words start to form. |
Infancy |
Social |
Shows preference for certain people and toys |
12 months |
Independence begins. |
Toddler |
Physical |
Walks alone |
12 months |
Major milestone for mobility. |
Toddler |
Cognitive |
Explores objects in various ways |
12 months |
Curiosity and exploration. |
Toddler |
Social |
Shows fear of separation from parents |
12 months |
Attachment issues may arise. |
Toddler |
Physical |
Stands on tiptoe |
15 months |
Increased balance and strength. |
Toddler |
Cognitive |
Turns books pages |
15 months |
Cognitive development in reading. |
Toddler |
Social |
Follows simple instructions |
15 months |
Understanding concepts of commands. |
Toddler |
Physical |
Walks up stairs holding on |
18 months |
Developing coordination and strength. |
Toddler |
Cognitive |
Knows what ordinary things are |
18 months |
Semantic language skills develop. |
Toddler |
Social |
Imitates adults and friends |
18 months |
Learning through observation. |
Toddler |
Physical |
Runs and jumps |
24 months |
Increased gross motor skills. |
Toddler |
Cognitive |
Begins to sort shapes and colors |
24 months |
Cognitive skills in categorization. |
Toddler |
Social |
Engages in parallel play |
24 months |
Socializing with peers begins. |
Preschooler |
Physical |
Kicks a ball |
3 years |
Improved coordination. |
Preschooler |
Cognitive |
Can count to 10 |
3 years |
Numerical understanding starts. |
Preschooler |
Social |
Cooperates with other children |
3 years |
Learning social skills. |
Preschooler |
Physical |
Climbs well |
4 years |
Coordination and strength improve. |
Preschooler |
Cognitive |
Can say first and last name |
4 years |
Identity and self-awareness. |
Preschooler |
Social |
Likes to sing, dance, and act |
4 years |
Increased expression of self. |
Preschooler |
Physical |
Can hop and stand on one foot |
5 years |
Balance skills develop. |
Preschooler |
Cognitive |
Can draw a person with at least six body parts |
5 years |
Fine motor skills improve. |
Preschooler |
Social |
Wants to please friends |
5 years |
Social dynamics develop. |
Preschooler |
Physical |
Can skip and gallop |
6 years |
Advanced gross motor skills. |
Child |
Cognitive |
Can add and subtract |
6 years |
Basic arithmetic skills developed. |
Child |
Social |
Begins to form friendships |
6 years |
Social skills strengthen. |
Child |
Physical |
Swings and climbs easily |
7 years |
Improved coordination and confidence. |
Child |
Cognitive |
Understands the concept of time |
7 years |
Cognitive maturity improves. |
Child |
Social |
Shows more independence |
7 years |
Letting go of reliance on parents. |
Child |
Physical |
Participates in team sports |
8 years |
Collaboration and team-building skills. |
Child |
Cognitive |
Reads simple books |
8 years |
Reading skills developing. |
Child |
Social |
Helps with household tasks |
8 years |
Understanding of responsibility. |
Child |
Physical |
Riding a bike without training wheels |
9 years |
Major milestone in independence. |
Child |
Cognitive |
Understands different perspectives |
9 years |
Social-emotional understanding. |
Child |
Social |
Negotiates with friends |
9 years |
Advanced conflict resolution skills. |
Child |
Physical |
Can use a variety of tools |
10 years |
Fine motor skills and coordination improve. |
Child |
Cognitive |
Comprehends more complex concepts |
10 years |
Cognitive abilities expand. |
Child |
Social |
Learns to handle peer pressure |
10 years |
Critical social skills emerge. |
Child |
Physical |
Develops endurance for longer activities |
11 years |
Physical stamina improves. |
Child |
Cognitive |
Plans and organizes tasks |
11 years |
Executive functioning skills develop. |
Child |
Social |
Builds deeper friendships |
11 years |
Quality of relationships improves. |
Child |
Physical |
Participates in competitive sports |
12 years |
Cooperation and competition understanding. |
Child |
Cognitive |
Can analyze and critique information |
12 years |
Critical thinking skills enhance. |
Child |
Social |
Begins to establish a personal identity |
12 years |
Self-concept formation. |
Teenager |
Physical |
Growth spurts occur |
13 years |
Significant physical development. |
Teenager |
Cognitive |
Understands moral implications |
13 years |
Development of ethics and morality. |
Teenager |
Social |
Experiments with different social roles |
13 years |
Identity exploration. |
Teenager |
Physical |
Develops independent hygiene routines |
14 years |
Increased personal responsibility. |
Teenager |
Cognitive |
Thinks abstractly and critically |
14 years |
Enhanced problem-solving capabilities. |
Teenager |
Social |
Develops deeper relationships |
14 years |
Emotional connections deepen. |
Teenager |
Physical |
Participates in more intense physical activities |
15 years |
Increased strength and skills. |
Teenager |
Cognitive |
Applies knowledge to real-world scenarios |
15 years |
Practical application of learning. |
Teenager |
Social |
Negotiates relationships with authority figures |
15 years |
Conflict resolution and assertiveness. |
Teenager |
Physical |
Achieves peak physical fitness |
16 years |
Optimal physical capability. |
Teenager |
Cognitive |
Explores career interests |
16 years |
Career and future planning. |
Teenager |
Social |
Experiences more autonomy |
16 years |
Self-governing life choices. |
Teenager |
Physical |
Final stages of growth spurts |
17 years |
Maturity in physical appearance. |
Teenager |
Cognitive |
Analyzes different viewpoints |
17 years |
Development of empathy. |
Teenager |
Social |
Establishes long-term friendships |
17 years |
Understanding of loyalty and commitment. |
Teenager |
Physical |
Begins to focus on personal health and fitness |
18 years |
Introduction to lifelong health habits. |
Teenager |
Cognitive |
Makes independent decisions |
18 years |
Early adulthood skill developments. |
Teenager |
Social |
Expands social network after high school |
18 years |
Transitioning to adulthood. |
Young Adult |
Physical |
Maintains physical health |
19 years |
Establishing routines. |
Young Adult |
Cognitive |
Enhances critical thinking and analysis |
19 years |
Adapting to complex environments. |
Young Adult |
Social |
Navigates adult relationships |
19 years |
Understanding of mature relationships. |
Young Adult |
Physical |
Participates in community fitness activities |
20 years |
Promoting active lifestyle. |
Young Adult |
Cognitive |
Manages career responsibilities |
20 years |
Professional growth begins. |
Young Adult |
Social |
Develops romantic relationships |
20 years |
Intimacy and emotional connections improve. |
Young Adult |
Physical |
Engages in regular health check-ups |
21 years |
Preventative health measures. |
Young Adult |
Cognitive |
Continued education or training |
21 years |
Career advancement decisions. |
Young Adult |
Social |
Begins to settle down into family life |
21 years |
Understanding commitment in relationships. |
Young Adult |
Physical |
Good nutrition and exercise habits developed |
22 years |
Healthy lifestyle formation. |
Young Adult |
Cognitive |
Financial independence and budgeting skills |
22 years |
Life skills for adulthood. |
Young Adult |
Social |
Builds a social circle in a new community |
22 years |
Adaptation to new environments. |
Young Adult |
Physical |
Participates in diverse physical activities |
23 years |
Physical and social engagement. |
Young Adult |
Cognitive |
Advanced career planning |
23 years |
Long-term goals set. |
Young Adult |
Social |
Understanding work-life balance |
23 years |
Navigating adulthood responsibilities. |
Young Adult |
Physical |
Prioritizes mental health and wellness |
24 years |
Awareness of emotional well-being. |
Young Adult |
Cognitive |
Evaluates the impact of decisions |
24 years |
Life decisions and consequences. |
Young Adult |
Social |
Creates a support network |
24 years |
Social skills utilized in adulthood. |
Middle Age |
Physical |
Regular health screenings |
35 years |
Preventative measures increasingly important. |
Middle Age |
Cognitive |
Adapts to changes in career or personal life |
35 years |
Resilience develops. |
Middle Age |
Social |
Fosters deeper community connections |
35 years |
Community engagement and support. |
Middle Age |
Physical |
Incorporates stress management techniques |
36 years |
Mental health awareness increases. |
Middle Age |
Cognitive |
Engages in lifelong learning |
36 years |
Continued personal and professional growth. |
Middle Age |
Social |
Mentors younger generations |
36 years |
Knowledge sharing and leadership. |
Middle Age |
Physical |
Regularly exercises to manage weight |
37 years |
Maintaining optimal health. |
Middle Age |
Cognitive |
Reflects on life experiences and values |
37 years |
Self-awareness deepens. |
Middle Age |
Social |
Strengthens family bonds |
37 years |
Family values and connections emphasized. |
Middle Age |
Physical |
Understands the importance of cardiometabolic health |
38 years |
Focus on heart health. |
Middle Age |
Cognitive |
Navigates career transitions or enhancements |
38 years |
Adapting to new roles. |
Middle Age |
Social |
Participates in community service |
38 years |
Importance of giving back. |
Middle Age |
Physical |
Acknowledges the need for flexibility and mobility |
39 years |
Preventing injuries with age. |
Middle Age |
Cognitive |
Adapts to technological changes |
39 years |
Staying relevant in modern age. |
Middle Age |
Social |
Embarks on new hobbies or interests |
39 years |
Growth in personal interests. |
Older Adult |
Physical |
Maintains an active lifestyle |
65 years |
Physical wellness becomes essential. |
Older Adult |
Cognitive |
Continues participating in social activities |
65 years |
Engagement in community life. |
Older Adult |
Social |
Strengthens family relationships |
65 years |
Importance of familial ties. |
Older Adult |
Physical |
Participates in rehab or physical therapy if necessary |
66 years |
Improving quality of life after injury. |
Older Adult |
Cognitive |
Encouragement to learn new skills |
66 years |
Intellectual stimulation is critical. |
Older Adult |
Social |
Stays connected with friends |
66 years |
Social interactions help mental health. |
Older Adult |
Physical |
Engages in low-impact exercises |
67 years |
Emphasis on joint health and mobility. |
Older Adult |
Cognitive |
Volunteering or mentoring younger generations |
67 years |
Sharing wisdom and skills. |
Older Adult |
Social |
Attends community events |
67 years |
Social connections and participation. |
Older Adult |
Physical |
Maintains a healthy diet |
68 years |
Nutritional awareness increases with age. |
Older Adult |
Cognitive |
Continues to plan for financial security |
68 years |
Ensure stability in retirement years. |
Older Adult |
Social |
Participates in support groups |
68 years |
Social support during life changes. |
Older Adult |
Physical |
Focuses on mental health exercises |
69 years |
Cognitive exercises enhance quality of life. |
Older Adult |
Cognitive |
Reflecting on lifetime achievements |
69 years |
Personal history and values become clear. |
Older Adult |
Social |
Builds intergenerational relationships |
69 years |
Importance of community across ages. |
Older Adult |
Physical |
Emphasizes balance and fall prevention |
70 years |
Preventative health strategies become key. |
Older Adult |
Cognitive |
Participates in book clubs or educational courses |
70 years |
Learning opportunities continue. |
Older Adult |
Social |
Shares life lessons with youth |
70 years |
Legacy and wisdom sharing. |
Older Adult |
Physical |
Maintains mobility with assistive devices if necessary |
71 years |
Emphasizing independence. |
Older Adult |
Cognitive |
Engages with technologies for communication |
71 years |
Adapting to modern communication tools. |
Older Adult |
Social |
Values and seeks quality of life |
71 years |
Focus on happiness and satisfaction. |
Older Adult |
Physical |
Takes regular health checkups and assessments |
72 years |
Health monitoring is critical. |
Older Adult |
Cognitive |
Continues to participate in meaningful activities |
72 years |
Maintaining engagement in life. |
Older Adult |
Social |
Establishes friendships with peers |
72 years |
Valuing peer relationships. |
Older Adult |
Physical |
Pursues adaptable physical activities |
73 years |
Remaining active within limits. |
Older Adult |
Cognitive |
Reflects on life lessons |
73 years |
Gaining wisdom through experience. |
Older Adult |
Social |
Engages in online communities or groups |
73 years |
Expanding social networks. |
Older Adult |
Physical |
Prioritizes self-care and mental wellness |
74 years |
Mental health remains paramount. |
Older Adult |
Cognitive |
Embarks on new personal projects |
74 years |
Continued growth and exploration. |
Older Adult |
Social |
Celebrates milestones with family |
74 years |
Social gatherings are meaningful. |
Older Adult |
Physical |
Invests in home modifications for mobility |
75 years |
Enhancing living conditions for safety. |
Older Adult |
Cognitive |
Surveys thoughts on life satisfaction |
75 years |
Understanding personal contentment. |
Older Adult |
Social |
Continues participating in hobbies |
75 years |
Maintaining interests nurtures joy. |
Older Adult |
Physical |
Recognizes signs of aging and adapts |
76 years |
Adapting to ensure comfort. |
Older Adult |
Cognitive |
Uses memory aids to foster cognitive health |
76 years |
Technology aids memory retention. |
Older Adult |
Social |
Seeks travel or experiences |
76 years |
Life enrichment through new adventures. |
Older Adult |
Physical |
Welcomes help when needed |
77 years |
Emphasizing community support. |
Older Adult |
Cognitive |
Engages in trivia or games for cognitive health |
77 years |
Memory and stimulation through fun activities. |
Older Adult |
Social |
Understands the impact of grief and loss |
77 years |
Navigating emotional health. |
Older Adult |
Physical |
Makes adjustments for healthy mobility |
78 years |
Focus on independent living. |
Older Adult |
Cognitive |
Engages in discussions about shared experiences |
78 years |
Building rapport and connection. |
Older Adult |
Social |
Refines relationships and priorities |
78 years |
Focus on significant connections. |
Older Adult |
Physical |
Regularly practices relaxation techniques |
79 years |
Focus on stress relief and peace. |
Older Adult |
Cognitive |
Creates life story projects and memoirs |
79 years |
Preserving legacy and history. |
Older Adult |
Social |
Participates in groups that foster dialogue |
79 years |
Encouraging social engagement. |
Older Adult |
Physical |
Remains proactive about healthcare |
80 years |
Understanding health is key to satisfaction. |
Older Adult |
Cognitive |
Plans for future family interactions |
80 years |
Engagement with upcoming generations. |
Older Adult |
Social |
Strengthens friendships with regular communication |
80 years |
Consistent social engagement is important. |