How hormones steer our appetite and eating behaviour
Flowing through your blood are chemical messengers that help to control your appetite. Understanding how they work can shed the light on the role of biology in weight regulation.
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Many of us aim to find the fastest way to lose weight,
typically by eating less and moving more. But many aspects of our
eating choices and physical activity are determined by complex
biological systems that lie beyond our willpower.
Every day we make hundreds of decisions, big and small. Many of these
decisions are good, but sometimes we later realise that we’ve made a
poor decision. Sometimes, we even know we are making a poor decision
as we make it.
This is often the case when it comes to
our relationship with our food. We blame ourselves for not making the
right decisions to meet our weight
goals and therefore don't always succeed in managing our weight.
We try to eat less and move more, but we don’t always succeed in
managing our weight.
This begs the question – could our
weight loss motivation be less about free will and more about biology?
We can thank the behavioural economist Daniel Kahneman for helping us
to understand that we have less conscious control over the decisions
we make, than we think we do. In fact, we make many decisions without
being aware of it.
He calls this System 1 thinking. It’s
fast, intuitive and unconscious, like picking a t-shirt out of
the cupboard, or tying your shoelaces.
System 2 works
differently. Let’s say you have an important date. You might spend a
lot of time trying on different clothes and asking your friends for
advice. This is System 2 thinking – slow and deliberative.
How do System 1 and System 2 work when it comes to weight and appetite
regulation?
Many people have thought long and hard
about their weight goals and the food that they want to eat. This
might mean that they diet or make sure they don’t have second
servings. This is what most people would think of as willpower.
Willpower works under the jurisdiction of the System 2.
But sticking to food and weight goals is made more difficult because
of the plans System 1 has in place. Those plans are governed by the
rules of survival game that is no longer relevant. The rules of
survival favour over consumption of high-energy foods and vigorously
protect us from weight loss.
Science has proven that effective weight management is more
complex than just willpower. In fact, it plays a much smaller role
when it comes to weight regulation than we used to think.
Weight is controlled by many processes and some of them are outside
of our conscious awareness. That is why a combination of therapies and
approaches that address multiple mechanisms is likely to be the most
efficient way to manage obesity, according to the research group from
Louisiana State University.
Fortunately, you do
not need to do it alone. For weight loss help, Sscheduling an
appointment with a trained healthcare professional to make a
personalised treatment plan is an important first step to
start tackling the challenge and make your biology work for you.
February 2024; IE23OB00175