Chronic Fatigue
Persistent exhaustion that sleep does not fix is more than ordinary tiredness. Chronic fatigue can make work, relationships, and daily life feel like a struggle, and it rarely has a single cause. Too often people are told their labs look normal and left without answers, when in fact the reasons behind their fatigue simply have not been fully investigated. Understanding the possible drivers is the first step toward feeling like yourself again.
Fatigue is investigated by Dr. James Petros, MD, founder of NexGen Health and a physician board certified in Functional Medicine, Anti-Aging Medicine, Regenerative Medicine, Physical Medicine, and Interventional Pain Management. Educated at Tulane University School of Medicine and trained at Stanford, Dr. Petros founded the practice in 2021 on the belief that true wellness is a way of life, treating fatigue as a solvable puzzle rather than a fact of life.
What Chronic Fatigue Feels Like
Chronic fatigue is more than being sleepy, and its symptoms often extend well beyond tiredness.
- Unrefreshing Sleep: waking tired even after a full night’s rest.
- Low Stamina: running out of energy early in the day.
- Brain Fog: difficulty concentrating, remembering, or thinking clearly.
- Post-Exertion Fatigue: feeling drained after modest activity.
- Mood Changes: irritability or low mood tied to exhaustion.
- Muscle Aches: general soreness or heaviness without clear cause.
The Many Causes of Fatigue
Chronic fatigue usually reflects several overlapping factors rather than one. Hormonal imbalances, thyroid dysfunction, nutrient deficiencies, poor sleep, chronic inflammation, hidden infections, and cellular energy problems can all sap energy, often at the same time. Because these drivers interact, restoring energy usually means looking at the whole picture, which is where thorough testing becomes essential.
How NexGen Health Can Help
NexGen Health looks for the reasons standard testing tends to miss, then rebuilds energy at the source. Explore NAD infusion therapy, Myers cocktail IV therapy, peptide therapy, and vitamin deficiency testing to see how the causes are identified and addressed.
Frequently Asked Questions About Chronic Fatigue
Standard labs can miss functional imbalances, so more advanced testing often uncovers causes that routine panels overlook.
Hormonal, thyroid, nutrient, sleep, inflammatory, and infection-related issues can all contribute, often together.
Many people regain significant energy once the underlying drivers are identified and addressed.
It is persistent, not relieved by rest, and often accompanied by brain fog and post-exertion crashes.
Yes, low levels of key nutrients are a common and correctable contributor to exhaustion.
Timelines vary, but many people notice gradual improvement over the first weeks to months of targeted care.
Why Choose NexGen Health
NexGen Health refuses to accept exhaustion as normal, using advanced testing to find and address the real causes. Under Dr. Petros, fatigue care is thorough and personalized. Located in San Jose and serving Los Gatos, Cupertino, Mountain View, and Silicon Valley, the practice helps patients feel like themselves again.
Find the Cause in San Jose
If exhaustion is running your life, contact NexGen Health in San Jose to schedule a consultation, call the practice, or book online.
Disclaimer: The information on this page is for educational purposes and is not a substitute for individualized medical advice, diagnosis, or treatment. Candidacy, therapies, and outcomes are determined during consultation, and individual results vary. Some therapies referenced may be provided on an off-label or investigational basis under physician supervision.