{"id":3264,"date":"2023-01-03T06:50:39","date_gmt":"2023-01-03T06:50:39","guid":{"rendered":"https:\/\/laminaheat.com\/?p=3264"},"modified":"2023-10-19T13:02:41","modified_gmt":"2023-10-19T13:02:41","slug":"why-do-some-people-run-hot-and-others-cold","status":"publish","type":"post","link":"https:\/\/laminaheat.com\/en\/why-do-some-people-run-hot-and-others-cold\/","title":{"rendered":"Why do some people run “Hot” and others “Cold”?"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Content” module_id=”content” _builder_version=”4.16″ custom_width_px__hover=”1080px” custom_width_px__hover_enabled=”1080px” custom_width_percent__hover=”80%” custom_width_percent__hover_enabled=”80%” global_colors_info=”{}” make_fullwidth__hover=”off” make_fullwidth__hover_enabled=”off” use_custom_width__hover=”off” use_custom_width__hover_enabled=”off” width_unit__hover=”on” width_unit__hover_enabled=”on”][et_pb_row disabled_on=”on|on|on” _builder_version=”4.17.4″ _module_preset=”default” disabled=”on” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_post_title meta=”off” featured_placement=”above” _builder_version=”4.17.4″ _module_preset=”default” title_font=”|600|||||||” title_text_color=”#ff3d00″ title_font_size=”40px” text_orientation=”center” global_colors_info=”{}”][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_post_title title=”off” featured_image=”off” disabled_on=”off|off|off” _builder_version=”4.17.4″ _module_preset=”default” title_text_align=”center” meta_text_align=”center” text_orientation=”right” text_orientation_tablet=”left” text_orientation_phone=”” text_orientation_last_edited=”on|tablet” global_colors_info=”{}”][\/et_pb_post_title][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.17.4″ _module_preset=”default” text_font=”Mulish||||||||” global_colors_info=”{}”]<\/p>\n

<\/h1>\n

Our Bodies As Machines<\/h1>\n

\u00a0 \u00a0In this next section of our thermoneutrality series we will be focusing on our metabolism, defining what it\u2019s components are, the factors that influence it, and the role that it plays in determining when we find ourselves in a state of thermoneutrality.<\/p>\n

 <\/p>\n

\u00a0 \u00a0 On a very basic level our metabolism is the amount of energy produced by our bodies through the digestion and processing of food. With the energy produced being used to power our essential bodily functions, such as maintaining normal operating function of our organs, as well as more non-essential functions such as the energy needed to get through that late night shift of work or a big workout.<\/p>\n

 <\/p>\n

\u00a0 \u00a0As with so many things relating to the human body determining what one\u2019s metabolism is can be quite challenging. With a lot of interpersonal variables such as: Age, Sex, eating habits etc.. all influencing one\u2019s metabolic rate, with some people, due to their individual circumstances, acting as extreme outliers.<\/p>\n

 <\/p>\n

\u00a0 \u00a0However, for the vast majority of people their metabolism can be determined to a relatively accurate degree by taking a couple of things into consideration. First one needs to determine one\u2019s basal metabolic rate (BMR) and then add some kind of multiplier to account for their activity level (for example MET) to determine their TDEE (total daily energy expenditure) which accounts for the total amount of energy required to maintain their body composition on a day-to-day basis.<\/p>\n

 <\/p>\n

Calculating BMR<\/h2>\n

 <\/p>\n

\u00a0 \u00a0 <\/b><\/strong>A person\u2019s basal metabolic rate is the amount of energy required to maintain one\u2019s basic life sustaining functions such as the normal operation of our organs. The main factors influencing one\u2019s basal metabolic rate are: Age, Sex, Height<\/strong>, and Weight<\/strong>. Why do these factors play a role?<\/p>\n

 <\/p>\n

\u00a0 \u00a0Well, age plays a role because on the whole as we continue to age our metabolic activity generally tends to slow down, this is caused due to a general decrease in muscle mass due to shifting hormone levels as well as a decrease in the efficiency of our bodies ability to digest food. These changes cause our BMR to drop and is a large reason for why a lot of people can\u2019t help but pack on some fluff as they age (the same habits\/diet that kept us in a healthy state no longer suffice as we age and if we don\u2019t adjust our habits accordingly weight gain is inevitable).<\/p>\n

 <\/p>\n

\u00a0 \u00a0As for sex, multiple studies have found that women tend to have lower BMR\u2019s to males even when accounting for age, weight, height, and activity level differences. Although sometimes this difference can be quite small (3-5%), it is still consistently present.<\/p>\n

 <\/p>\n

\u00a0 \u00a0Height and weight also play a role through dictating the overall energy needed to maintain our masses. With both larger heights and weights correlating to higher BMRs, although for weight there is a difference between fat free mass(muscle+skeleton) and fat mass. With higher fat free masses(larger muscle mass) playing an outsized role in driving up BMR in comparison with fat mass. This is also a reason that more muscular individuals generally need to consume more calories to maintain their bodyweight.<\/p>\n

 <\/p>\n

\u00a0 \u00a0Nowadays there are also plenty of readily available equations one can use to calculate roughly what ones BMR is. One of these equations is The Harris-Benedict equation. This equation takes the previously stated variables(age, sex, weight, and height) into consideration to calculate ones BMR through the use of the equation below:<\/p>\n

 <\/p>\n

BMR = 13.397W + 4.799H – 5.677A + 88.362<\/strong><\/p>\n

For men and<\/strong><\/p>\n

BMR = 9.247W + 3.098H – 4.330A + 447.593<\/strong><\/p>\n

For women<\/strong><\/p>\n

For reference see the below hypothetical two individuals BMRS.<\/strong><\/p>\n

1: a 90kg 179cm tall 28 year old male\u00a0would have a BMR of 1,884 Calories per day<\/strong><\/p>\n

2: 60kg 165cm tall 42 year old female\u00a0would have a BMR of 1,260 Calories per day.<\/strong><\/p>\n

Per the above equation.<\/strong><\/p>\n

<\/strong><\/p>\n

\u00a0 \u00a0As can be seen by these two examples there already exists a large range for caloric needs from person to person just based on their overall builds.<\/p>\n

 <\/p>\n

\u00a0 \u00a0However, there are still three other factors that can play a large role in determining one\u2019s overall metabolism: those being NEAT(non-excercise activity thermogenesis) which is generally the energy we expend doing small motions like twitching our leg, shifting our posture, or consistently walking to the fridge, (NEAT related habits can increase daily caloric requirements by up to 300 calories at times! Then there is the thermic effect of food(which is the amount of energy required by our bodies to digest the food we consume at a meal usually around 5-10% of the calorie quantity being consumed), as well as our overall activity level(what do we spend the majority of our time doing), which along with ones BMR come together to determine ones TDEE or total daily energy expenditure. This number indicates the amount of calories one needs to consume on a day to day basis to maintain ones body weight, gain weight, or lose weight dependent on ones goals.<\/p>\n

 <\/p>\n

\u00a0 \u00a0Activity level calculators are basic guidelines wherein based on one\u2019s daily habits (sitting at a desk all day, doing manual labor, being a professional athlete) \u00a0a multiplier is added to ones BMR, ranging from 1.2(for a sedentary lifestyle) to 2x+ for professional athletes. Once an appropriate multiplier has been added to a BMR a TDEE value is created which equates to the overall energy we need to take in per day to maintain our current bodyweights.<\/p>\n

 <\/p>\n

\u00a0 \u00a0So lets take the two hypothetical individuals from before again and see how much of an impact this can make.<\/p>\n

 <\/p>\n

The Difference Regular Activity Makes<\/h2>\n

1: a 90kg 179cm tall 28 year old male\u00a0would have a BMR of 1,884 Calories per day<\/strong><\/p>\n