If you feel exhausted no matter how much you sleep, you’re not alone. Chronic fatigue and low energy are two of the most common health complaints. While stressand busy schedules get blamed, fatigue is often a sign of deeper imbalances in the body. Functional medicine looks beyond symptoms to uncover the root causes of chronic fatigue, so true healing can begin.
Hormone Imbalances
Hormones act as messengers that regulate energy, metabolism, and sleep. When hormones like thyroid hormones, cortisol, estrogen, progesterone, or testosteroneare out of balance, fatigue quickly follows. Thyroid dysfunction and disrupted cortisol rhythms are especially common causes of low energy and burnout.
Poor Gut Health
Your gut plays a major role in energy production. Conditions like SIBO, dysbiosis, or leaky gut can impair nutrient absorption and increase inflammation. When digestionisn’t working properly, your cells don’t get the fuel they need, leading to chronic tiredness, brain fog, and low motivation.
Nutrient Deficiencies
Low levels of iron, vitamin B12, magnesium, vitamin D, and B vitamins can dramatically impact energy. Even people eating well may be deficientdue to stress, gut issues, or poor absorption. Without these nutrients, your body struggles to produce energy efficiently.
Blood Sugar Imbalances
Energy crashes, cravings, irritability, and afternoon slumps are often signs of unstable blood sugar. Skipping meals, eating too many refined carbs, or relying on caffeine can create highs and lows that leave you feeling drained and foggy.
Chronic Stress and Adrenal Dysfunction
Long-term stress keeps the body in fight-or-flight mode. Over time, this disrupts cortisol patterns, affects sleep quality, and leads to feeling “tired but wired” or “tired and burnt out.” Many people with chronic fatigue are stuck in survival mode without realizing it.
Inflammation and Hidden Infections
Ongoing inflammation, autoimmune activity, mold exposure, or unresolved viral infections can silently drain energy. When the immune system is constantly activated, the body diverts energy away from daily functioning, leading to fatigue and tiredness.
How Functional Medicine Helps Chronic Fatigue
Functional medicine uses advanced testing to identify the root causes of low energy, including hormone panels, nutrient testing, gut testing, and inflammation markers. Treatment is personalized and focuses on restoring balance, so energy returns sustainably. Chronic fatigue isn’t laziness or a lack of willpower—it’s your body asking for support. When the root causes of low energy are properly identified and addressed, real and lasting change is possible.

Leah Griffin O’Connor – Wellness Care Strategist
Leah has deep family roots in the Lake Norman area, fostering a strong connection and commitment to her community. With a longtime interest and passion for functional nutrition and lifestyle, she holds a profound belief in the power of functional medicine.
Outside of work, she enjoys being with her family and friends, spending time on the lake, and traveling. Leah is dedicated to enhancing the patient experience and creating awareness for MediThrive’s solutions to help others unlock their wellness potential. Leah looks forward to watching MediThrive help others feel their best and thrive
