Obestiy Flashcards
Obesity
polygenic (multiple genetic/environment factors)
Types of Obesity
Primary- majority- excessive caloric intake for metabolic demands
Secondary- congential/chromosome, metabolic/cns lesions
Primary Obesity
majority- excessive caloric intake for metabolic demands
Secondary Obesity
congential/chromosome, metabolic/cns lesions
BMI
18.5-Underweight
18.5-24.9 normal
25-29.9 overweight
>30 obese
>40 morbid obese
Causes of Obesity
Genes- FTO gene variant
Appetite- hypothalamus from periphery- different hormones and peptides
Environmental- Prepackaged foods, fast foods & soft drinks, portion sizes. Lack of exercise
Psychosocial- emotional, socialization, develops at early age
Obese ppl underestimate food/caloric needs
Body Shapes
Android- Apple shape, visceral fat complications
Gynoid- Pear shape, SubQu
Complications of Obesity
Mortality increase by 50% if bmi >30
20-40% increase in overweight midlife
Cardiovascular- htn, whr best predictor, resp
Risk of DM, OA, Hyperuricemia, gout, GI & Liver (NASH-non alcoholic steatohepatitis)
Cancer- breast, endometrium, kidney, colon, pancreases, esophagus, gallbladder.
Psychosocial stigma, discrimination
Cardiovascular complications of obesity
htn,
waist/hip best predictor,
respiratory