Today, we're tackling workout burnout – because sometimes more exercise is like drinking caffeine when you're already jittery.

Here's the truth bomb: Your body doesn't know the difference between running from a bear and running from exhaustion in HIIT class. Both trigger cortisol – your stress hormone.

When cortisol spikes repeatedly from intense workouts, it disrupts insulin sensitivity, making your body store fat for "survival." Your thyroid downregulates to conserve energy. And leptin – your satiety hormone – gets wonky, leaving you ravenous after that CrossFit session.

The result? Your body starts holding onto fat while stealing from muscle. Game over for your weight loss goals.