• FATHER
• * Father or significant male role model (e.g. step father, grandfather, uncle, or older brother) of a child 5-11 years old
• * Age 18-65 year old
• * Living in Greater Houston Area
• * Self-identify as Hispanic or Latino
• * Able to read and write in Spanish or English
• * BMI \>/=25 - 40
• * Pass the 2015 American College of Sports Medicine's exercise participation health screener
• CHILD • 5-11 year old child and up to three siblings, whose father/significant male role model is participating
• MOTHER (If available) 1) Significant female role model such as biological mother, step mother, foster mother, grandmother, aunt or older sister; or other co-parent/partner to participating children

Exclusion Criteria:

• FATHER
• * Known diagnosis of diabetes without medical clearance from health care provider;
• * Known diagnosis of cardio-vascular disease (cardiac arrhythmia, h/o myocardial infarction, heart valve disease, heat failure, heart transplantation, congenital heart disease, h/o heat surgery, coronary angioplasty, or stroke)
• * Currently, or in the past 6 months, in a weight management program
• * Currently, or in the past 6 months, taking medicine that can affect weight or might be affected by weight loss
• * Any other disease or condition affecting their ability to participate in physical activities/exercise (e.g., physical disability, severe asthma)
• * Any other disease or condition affecting their ability to participate in group classroom activities including cognitive impairment (e.g., Down's syndrome, Fragile X), or psychiatric functioning (e.g. schizophrenia)
• * Plans of moving away from Harris County in the next year
• * Not passing the 2015 American College of Sports Medicine's exercise participation health screener AND NOT provide a medical clearance from a licensed medical provider (MD, NNP, PA)
• * Unwilling to wear accelerometer for a 7 day study period at the three assessment points.
• * BMI less than 25 or greater than 40.
• * HbgA1C equal or greater than 6.5% at baseline data collection without medical clearance from health care provider.
• * Has previously participated in studies on the Healthy Dads Healthy Kids' for US Hispanics
• * History of myocarditis from COVID infection or vaccine
• CHILD
• * Not within the 5-11 year old child age range
• * Known diagnosis of diabetes
• * Known diagnosis of cardio-vascular disease (cardiac arrhythmia, h/o myocardial infarction, heart valve disease, heat failure, heart transplantation, congenital heart disease, h/o heat surgery or coronary angioplasty)
• * Inability to participate in regular physical education classes in school due to health or physical condition (e.g. physical disability, severe asthma)
• * Any disease or condition affecting their ability to participate in group classroom activities including cognitive impairment (e.g. Down's syndrome, Fragile X), or developmental problems (e.g. autism)
• MOTHER
• • No father figure to her children enrolled in the study