What is Glucose?
Glucose is a simple sugar derived from carbohydrates. Once it enters your bloodstream, glucose acts as a circulating fuel supply. To get that sugar out of your blood and into your cells to be converted into energy, your body uses a hormone called insulin. If insulin can’t remove sugar from blood efficiently, your blood sugar spikes, leaving your cells “starving” for energy even though your blood is full of it. This imbalance contributes to energy crashes and long-term metabolic dysfunction.
Why Does Glucose Matter?
Glucose serves as the body’s primary energy currency, supporting essential functions across nearly every system.
Adequate glucose availability helps:
- Power cellular energy production by fueling ATP generation, which keeps organs and tissues functioning properly
- Fuel the brain and maintain neural activity (the brain consumes around 20% of glucose-derived energy)1
- Enable cell growth and repair by providing raw materials for essential molecules, including ribose and deoxyribose (for RNA and DNA), glycoproteins, and glycolipids (involved in cell structure and signaling)
- Support metabolic signaling, allowing insulin to direct how efficiently cells take in and use energy
- Maintain energy between meals and during stress through glycogen storage and controlled glucose release
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How to Interpret Glucose?
(Ranges may vary slightly by lab)
Standard reference ranges represent the middle 95% of healthy individuals but don’t necessarily reflect levels associated with longevity. Optimal ranges are derived from clinical guidelines, peer-reviewed research, and real-world outcomes data, with an emphasis on levels associated with peak functioning and reduced disease risk.
Benefits of Optimizing Glucose
- More consistent energy and mental clarity throughout the day
- Improved weight management and metabolic health
- More stable mood, with fewer spikes in irritability or “hangry” crashes
- Lowered inflammation and chronic disease risk
- Enhanced physical performance and athletic recovery
- Improved sleep quality and duration2
- Healthier skin3
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Low Glucose Levels (Hypoglycemia)
Too little glucose (hypoglycemia) can deprive the brain and muscles of energy.
Symptoms:
- Shaking
- Sweating
- Rapid heartbeat
- Dizziness
- Hunger
- Headaches
- Irritability
- Blurred vision
Causes:
- Skipping meals
- Intense exercise
- Taking too much insulin
- Wrong medication timing
- Not eating enough carbs
- Severe illness
- Hormone deficiencies (Addison’s disease, e.g.: adrenal insufficiency)
Healthspan Impacts:
- Faster decline in memory, focus, and thinking skills
- Sleep problems or disrupted sleep
- Difficulty forming and retaining new memories4
- Reduced day-to-day quality of life
- Higher risk of heart disease and blood vessel problems5
- Increased risk of delayed stomach emptying (gastroparesis)6
High Glucose Levels (Hyperglycemia)
Too much glucose (hyperglycemia), especially when it stays elevated over time, can strain nearly every system in the body and increase the risk of heart disease, kidney damage, nerve injury, vision problems, and chronic inflammation.
Symptoms:
- Excessive thirst
- Hunger
- Fatigue
- Frequent urination
- Poor sleep
- Dry mouth
- Recurrent infections
- Blurred vision
Causes:
- Type 1 or type 2 diabetes
- Stress
- Infections (common cold)
- Certain medications (steroids)
- Pancreatic issues
- Hormonal disorders (Cushing’s)
- Pregnancy (gestational diabetes)
Healthspan Impacts:
- Faster cognitive decline
- Accelerated biological aging and higher risk of of age-related diseases7
- Ongoing oxidative stress and low-grade inflammation throughout the body
- Damage to small blood vessels in the kidneys, eyes, and nerves8
- Stiffening of blood vessels and impaired vessel function
- Increased vulnerability to infections9
How Hone Treats Out of Range Glucose
Your Hone physician will evaluate glucose levels alongside other metabolic biomarkers and symptoms. Treatment focuses on improving glucose handling and metabolic flexibility.
- Insulin – to regulate type 1 diabetes, but sometimes used to treat type 2 and gestational diabetes
- Metformin – to improve insulin sensitivity and help the liver regulate glucose production
- Continuous Glucose Monitoring (CGM)* – to track real-time sugar responses to specific foods
- GLP-1s-to improve the body’s glucose response and help regulate appetite.
*Your Hone Physician does not prescribe these treatments but will recommend further evaluation and help coordinate care with your primary care provider when medical treatment is indicated.
- Maintain a consistent sleep schedule and optimize sleep duration (7-8 hours)
- Eat dinner at least three hours before bedtime12
- Consume a lower-glycemic-load dinner
- Prioritize a whole food, high-fiber diet
- Limit sugary drinks and processed foods
- Incorporate both resistance exercise and moderate-intensity aerobic activity
- Limit alcohol and tobacco
- Manage stress through meditation, deep breathing, or yoga13, 14, 15
Even modest improvements in sleep, movement, and meal timing can significantly improve glucose regulation within weeks.
Mergenthaler, P. et al. (2013). Sugar for the brain: The role of glucose in physiological and pathological brain function. Trends in Neurosciences.
↑Tiwari R. et al. (2021). Effects of sleep intervention on glucose control: A narrative review of clinical evidence. Prim Care Diabetes.
↑Noordam, R. et al. (2011). High serum glucose levels are associated with a higher perceived age. Age.
↑Amiel, S.A. (2021). The consequences of hypoglycaemia. Diabetologia.
↑Akhaury, K. et al. (2023). Hypoglycemia and Cardiovascular Disease: Exploring the Connections. Cureus.
↑Abdelsayed, N., Juarez, A., & Carter, M. (2022). Severe Gastroparesis Leading to Hypoglycemia and Subsequent Seizures. Cureus.
↑Wu, N., & Fu, J. (2025). Association of biological age acceleration with mortality in adults with diabetes or prediabetes: A mediating role of physical activity. Aging Clinical and Experimental Research.
↑Giri, B. et al. (2018). Chronic hyperglycemia mediated physiological alteration and metabolic distortion leads to organ dysfunction, infection, cancer progression and other pathophysiological consequences: An update on glucose toxicity. Biomedicine & Pharmacotherapy.
↑Zhou K, Lansang MC. (2024). Diabetes Mellitus and Infection. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.
↑Kim, B. (2022). Momordica charantia (bitter melon) efficacy and safety on glucose metabolism in Korean prediabetes participants: A 12-week, randomized clinical study. Food Science and Biotechnology.
↑Senevirathne, B.S. et al. (2022). Ceylon cinnamon: A versatile ingredient for futuristic diabetes management. Journal of Future Foods.
↑Lopez-Minguez, J. et al. (2017). Late dinner impairs glucose tolerance in MTNR1B risk allele carriers: A randomized, cross-over study. Clinical Nutrition.
↑Sinha, S. et al. (2018). Effect of 6 Months of Meditation on Blood Sugar, Glycosylated Hemoglobin, and Insulin Levels in Patients of Coronary Artery Disease. International Journal of Yoga.
↑Wilson, T. et al (2013). Relaxation Breathing Improves Human Glycemic Response. The Journal of Alternative and Complementary Medicine: Paradigm, Practice, and Policy Advancing Integrative Health.
↑Hazarika, D., Khan, I., & Lahkar, M. (2025). Effects of Yoga and Walking on Blood Glucose Levels and Quality of Life in Adults With Type 2 Diabetes Mellitus: A Pilot Study. Cureus.
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Reviewed for Accuracy by Our Medical Review Board
This biomarker information has been reviewed by a member of Hone’s medical review board. As part of the medical review team, physicians fact-check this content against the latest research and their own experience treating their patients.
Ashley Winter, M.D., is a board-certified urogynecologist trained at Weill Cornell and Cleveland Clinic. She specializes in female and male sexual dysfunction, urinary issues, genital pain, and hormone therapy.
James Staheli, D.O., is the Medical Director for Broad Health, Hone Health’s affiliated medical practice and a family medicine doctor in Atlanta, Georgia.
