How does genetics affect aging? What about lifestyle and the environment?
What will be an ideal response?
Answer: Living to an old age tends to run in some families., Gender is a factor, females tend to live longer, people with thrifty metabolism tend to live longer, they can store fat in times of plenty and use stores in times of scarcity, this can reduce longevity with excessive body fat stores. Rate of HDL-cholesteral production can also have impact-higher-longevity, decreased risk of heart disease. Lifestyle and enviroment can "modify the expression of genetic potential". Pattern of lifestyle -food, choices, exercise patterns, substance use (alcohol, drugs). Choices can have major impact on longevity. Enviorment- income, purchase food, health care, shelter. Education level, earn income, make informed decisions. Shelter, protection from danger, Psychosocial health, having informational/emotional resources, sense of autonomy to control situations, make decisions, stress from lack of income, shelter, lack of social support. Examples of enviormental stress-radiation, hazardous chemical agents, pollutants.
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A canned chili food label indicates it contains 400 calories per serving, 30% of the daily value for sodium and has a health claim for fiber and cancer. You are concerned because:
a. health claim is not valid for fiber and cancer b. sodium amount appears too low for canned chili c. calories seem to low for chili d. foods containing more than 20% daily value of sodium cannot carry health claims
Examples of criteria that may indicate nutritional risk include:
a. constipation. b. severe trauma. c. seasonal allergies. d. concussion.
Which of the following is the best evidence that environment must play a role in obesity?
a. The rate of obesity has been rising while the gene pool has remained relatively constant. b. The recognition that identical twins reared apart have body weights similar to their biological parents. c. The development of precise body composition methodologies that define adipose storage sites based on gender. d. The discovery of uncoupling proteins that explain the variations in energy metabolism among lean and overweight people. e. Adoption studies show that adopted individuals have body mass more similar to their adoptive parents than their birth parents.
Consuming which nutrient at the same meal will enhance the absorption of nonheme iron?
A. vitamin A B. zinc C. folate D. vitamin C