Which measurement is used to judge whether people are at a healthy weight, given their height?
height-to-weight ratio
hip-to-waist ratio
muscle mass density
body mass index

his week a heat wave will be hitting, and most of the country will be experiencing temperatures above average for july. due to humidity, the temperature outside can feel even warmer than it actually is. this adjusted temperature, often referred to as the “feels like” temperature is called the heat index. the chart shows the heat index, which is calculated based on temperature and relative humidity. use this chart to answer the following questions.  

cutting out negative people, changing their diets, exercising, taking off days from work or school, etc