Does when food is eaten affect weight gain? a study was introduced that examined the effect of light at night on weight gain in
mice. in the full study of 27 mice over a four-week period, the mice who had a light on at night gained significantly more weight than the mice with darkness at night, despite eating the same number of calories and exercising the same amount. researchers noticed that the mice with light at night ate a greater percentage of their calories during the day (when mice are supposed to be sleeping). the computer output shown below allows us to examine the relationship between percent of calories eaten during the day, daypct, and body mass gain in grams, bmgain. a scatterplot with regression line is also shown below.
The total amount of calories that you take in, and how much you exercise during the day, are what affect your weight. However, many people do tend to overeat and choose high-calorie foods as snacks at night, both of which will cause weight gain.
Answer: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients.
