CANADIAN PHYSIQUE ALLIANCE MARCH || ISSUE 32 | Página 78

Factors That Effect
THYROID FUNCTION
If you take your index and middle finger to your
Adams Apple (men) or your voice box, just
underneath you will find your thyroid gland.
When it comes to energy levels, metabolism,
temperature control and sleep, your thyroid
needs to be functioning optimally.
If your energy is low--workouts become
compromised if metabolism slows--fat loss is
difficult and if sleep is impaired-muscle
growth does not occur.
Stress
Whether good or bad the body responds to stress
in the exact same way. Your stress mechanism is
called the ‘fight or flight’ response and once
engaged a cascade of hormones are released
including the stress hormone, cortisol. Cortisol is
necessary in the body but too much or
chronically high levels lower TSH, T3 and T4.  The
same stress response occurs with caloric
restriction during contest prep or cutting phases;
cortisol goes up and tells your liver to make more
glucose for energy to either attack (fight) or run
away (flight).
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