UPDATE 2026
BMI (Body mass Index) upside - Answers data are easy to obtain
BMI downsides - Answers formula doesn't consider body composition or distribution of weight
What percentage of Canadians are obese/overweight (2017) - Answers 64%
Percentage of children 5-17 - Answers 30%
percentage of indigenous adults - Answers 67%
What does obesity do to life expectancy - Answers reduces it by 14 years, 1 in 10 adults die early
Risks associated with excess body fat - Answers increase risk of:
- cancers
- Diabetes
- CVD
- impaired immunity
- kidney and gallbladder disease
- bone and joint disorders
- psychological disorders
What is essential fat - Answers essential for reproductive capacity and not associated with health risk
Essential fat of body weight in men vs women - Answers 3% vs 12%
What is "risky" fat - Answers non-essential, visceral or subcutaneous adipose, depends on
sex/age/diet/activity , and mobilized by energy demands
What do essential and risky fat have in common - Answers hormonally determined
What shape are men vs women - Answers android (apple) vs gynoid (pear)
What is type 1 diabetes - Answers pancreas produces little/no insulin, so no signal sent instructing
cell to transport glucose, builds up in blood
What is type 11 diabetes - Answers Body's cells are resistant to insulin or not enough produced so
some insulin binds to receptors on cells surface but signal is blocked, glucose builds up
Symptoms of Diabetes - Answers - frequent urination
- extreme thirst/hunger
- weight loss
- fatigue
- blurred vision
- infections
- slow wound healing
- tingling in hand/feet
- dry, itchy skin
height-weight charts - Answers compared to chart determined by insurance companies what the
ideal weight was for people based on lowest mortality for people of particular sex, age etc.
hydrostatic weighing - Answers person is submerged and weighed under water and % body fat
determined by density, more dense people sink and more fat they float
skin fold measurements - Answers measures thickness of fat under skin at several parts of body and
then calculated with a formula for precent body fat
circumference measurments - Answers waist circumference and waist to hip ratio measured
electrical impedance - Answers Electrodes places all over body and harmless signals are sent, signals
travel best in fat-free tissues , computers calculate fat from current
Scanning methods - Answers very accurate and only offered at medical facilities/for research
BMI - Answers calculated based on the assumption that weight should be proportional to height,
more accurate than heigh-weight scales
BMI formula - Answers weight/height^2
energy balance equation - Answers energy input - energy output = +/- energy balance
what is considered energy in - Answers food and alcohol
what is considered energy out - Answers basal metabolism (60-75%)
thermogenesis (10%)N
physical activity (15-30%
Basal Metabolic Rate (BMR) - Answers rough estimate is 10x your body weight in lbs
What affects BMR - Answers - genetics
- higher lean muscle mass