Day 5: Over Exercising Means Getting Sick More Often

Overtraining Wrecks Immunity: Why You Keep Getting Sick

If every sniffle turns into a full-blown cold, your workouts might be the culprit.

Regular exercise boosts immunity—but too much suppresses it. Overtraining stresses the body to the point that defense systems falter. This leaves you vulnerable to colds, flu, and infections. Research confirms that prolonged overexercising weakens immune response, making athletes more susceptible to illness (Journal of Applied Physiology, 2018).

If you’re catching every bug that goes around, it’s not bad luck—it’s a body warning. Rest restores immunity faster than antibiotics can.

Practical Step: At the first sign of sickness, replace your workout with extra sleep and hydration. Rest is your best supplement.