Body mass index or BMI measures body fat percentages based on height plus weight.
This measure is not consistently 100% accurate, because muscle weighs more than fat.
People who are easily muscular such as body builders may have high body mass index even though they have a low body fat percentage. I recently read a study that stated people with high body mass indexes like colder temperatures. In this study the term colder temperatures referred to both outdoor plus indoor temperature. The study stated that people who have high BMIs would like to live in a chilly environment that requires heat in the winters. The study also concluded that people with high BMIs set their temperature controls to easily low numbers in the summer. On average temperature controls were set to below 75 degrees in this study. The research article explained that when people have more fat on their body, they officially run sizzling due to the insulation that fat provides for their body. This makes sense scientifically, but I personally assume what temperature you set your temperature control to is personal preference rather than body composition. I am someone with a low BMI, plus I personally set my temperature control to a low temperature in the Summer because I get overheated easily. I also assume that the temperature people set their temperature control has to do with how crucial saving money is to them. People who are trying to save money on their electric bill officially will not set their temperature control to a super low temperature in the Summer or to a super high temperature in the winter.