T is for Thermodynamics – specifically the laws of thermodynamics.

Thermodynamics is the physics of energy. There are 4 laws of thermodynamics that are agreed upon in the physics world. These 4 laws describe how energy is transferred from one object to another.

Definitions:

1. Thermal energy – the amount of energy described in terms of temperature.

2. Heat – the energy transfer between substances. It cannot be created or destroyed, only transformed. For example a lightbulb takes electricity (energy) and transforms it into light (electromagnetic radiation)

3. Temperature – describes the speed of heat transfer. The warmer something is the faster the atoms are moving creating a higher temperature

4. Entropy – wasted heat (energy) that can no longer be used

The 4 Laws of Thermodynamics

• Zeroth Law (0) – this one is all about equilibrium. A simple explanation is if 2 objects are in energy equilibrium with each other and a third is added, they will all be in equilibrium.

• 1st Law – an increase in energy will result in increased thermal energy + work

• 2nd Law – Energy can’t go from a lower temperature to a higher temperature without extra energy added. It must be “forced” or “helped”.

• 3rd Law – this one has to do with perfection (in crystals – which are considered perfect). Our bodies do not operate in perfection.

The 2nd law of thermodynamics is often used to justify calories in/out as the ‘only’ way to lose weight (fat stores)

There is a glaring problem with applying the laws of physics to human physiology. Vacuums

We do not live in a physics vacuum.

The physics laws of thermodynamics are independent of any other factors. Humans have a lot of those other factors.

Hormones, minerals, vitamins, stressors, inflammation, and environment all play MAJOR roles in our metabolism. The hormone category alone is often responsible for poor weight control.

Cortisol, testosterone, estrogen, thyroid, progesterone, insulin, leptin, ghrelin, melatonin, and glucocorticoids all are needed in very specific amounts in order to achieve weight loss.

But it’s not as simple as obtaining a lab value and supplementing. Each of these work with each other and need each other in a dynamic checks and balances system. So, please, do not go to the supplement aisle and start buying anything unless you have already been guided by someone knowledgeable about their interplay.

Start with how you are eating and what you are eating. What you eat matters more than how much you eat.

When the balance of vitamins, minerals, and macros is fine-tuned to YOU, the rest of your body has a chance to operate on all cylinders. Just remember, calories are a piece of the puzzle – not the entire puzzle.

References:

What Is Thermodynamics?

A calorie is a calorie” violates the second law of thermodynamics

10 Hormones Responsible For Weight Gain In Women