Cardiovascular System
The cardiovascular system consists of the heart, blood vessels, and blood. It pumps approximately 2,000 gallons of blood daily, delivering oxygen and nutrients to tissues while removing waste products.
Understanding Your Cardiovascular System
Your heart beats about 100,000 times per day, pumping blood through 60,000 miles of blood vessels. This remarkable system delivers oxygen and nutrients to every cell in your body while removing carbon dioxide and metabolic waste.
Why Cardiovascular Health Matters
Heart disease remains the leading cause of death globally. The good news is that up to 80% of cardiovascular disease is preventable through lifestyle factors. Maintaining cardiovascular health directly impacts your energy, cognitive function, longevity, and quality of life.
Key Cardiovascular Markers
Important numbers to know include blood pressure, cholesterol levels (total, LDL, HDL, triglycerides), fasting blood glucose, and inflammatory markers like C-reactive protein (CRP).
Common Challenges
- High blood pressure — The “silent killer” that damages blood vessels over time
- High cholesterol — Particularly elevated LDL and low HDL levels
- Atherosclerosis — Plaque buildup in arteries restricting blood flow
- Arrhythmias — Irregular heart rhythms affecting heart function
- Poor circulation — Reduced blood flow to extremities and organs
Key Functions
Blood Circulation
Pumps blood through arteries, veins, and capillaries, completing a full circuit every minute
Oxygen Delivery
Transports oxygen from lungs to all body tissues and returns carbon dioxide for exhalation
Oxygen Delivery
Carries glucose, amino acids, fatty acids, vitamins, and minerals from digestion to cells
Nutrient Transport
Collects metabolic waste products and delivers them to kidneys and lungs for elimination
Waste Removal
Redistributes heat throughout the body and to skin surface for cooling
Temperature Regulation
Transports hormones from endocrine glands to target tissues throughout the body
Tips for Supporting This System
Lifestyle Tips for Cardiovascular Health
- Exercise regularly: Aim for 150+ minutes of moderate aerobic activity weekly. Your heart is a muscle — it needs exercise.
- Eat heart-healthy fats: Prioritize omega-3s from fatty fish, olive oil, nuts, and avocados. Limit saturated and trans fats.
- Manage blood pressure: Reduce sodium, manage stress, maintain a healthy weight, and monitor regularly.
- Don’t smoke: Smoking is one of the most significant cardiovascular risk factors. Quitting provides immediate benefits.
- Manage weight: Excess weight, especially abdominal fat, increases heart disease risk.
- Limit alcohol: If you drink, do so in moderation (up to 1 drink/day for women, 2 for men).
- Manage stress: Chronic stress raises blood pressure and promotes inflammation.
- Get quality sleep: Poor sleep is linked to higher cardiovascular disease risk.
Compounds That Support This System
Nattokinase
PreliminaryNattokinase is a fibrinolytic enzyme extracted from natto, a traditional Japanese food made from fermented soybeans. It has potent activity in breaking down fibrin, the protein matrix of blood clots, and has been studied for supporting healthy circulation and cardiovascular function.
EGCG (Green Tea Extract)
ModerateEGCG is the most abundant and powerful catechin in green tea, accounting for a large share of its polyphenol content. It is a potent antioxidant with evidence for benefits in metabolic health, weight management, cognitive function, and cardiovascular support.
Resveratrol
PreliminaryResveratrol is a polyphenol found in red wine, grapes, and certain plants. It gained attention as a possible contributor to the “French Paradox” – lower heart disease rates despite high-fat diets. It has antioxidant and anti-inflammatory properties and may influence longevity pathways and cardiovascular health.
Potassium
StrongPotassium is the primary intracellular electrolyte, essential for maintaining fluid balance, nerve impulse transmission, and muscle contraction, including the heart. Adequate potassium intake helps lower blood pressure and may reduce stroke risk, yet most people do not consume enough.
Iron
StrongIron is essential for oxygen transport (hemoglobin), energy production (cytochromes), and DNA synthesis. Iron deficiency is the most common nutritional deficiency globally and can cause anemia, fatigue, and cognitive impairment. Excess iron is toxic, so supplementation should generally be reserved for documented deficiency.
Vitamin K
ModerateVitamin K exists in two main forms: K1 (from plants, primarily for clotting) and K2 (from fermented foods and animal products, important for bone and cardiovascular health). K2 (especially MK-7) has gained attention for its role in directing calcium to bones rather than arteries.
Vitamin B3
StrongVitamin B3 (Niacin) is essential for energy metabolism and DNA repair. It exists in two main forms: nicotinic acid (causes flushing but improves cholesterol) and nicotinamide (no flushing, different therapeutic uses). Prescription-strength niacin is used to manage dyslipidemia.
Berberine
StrongBerberine is a plant alkaloid found in goldenseal, barberry, and Oregon grape. It is one of the most effective natural compounds for blood sugar control, with studies showing it can be as effective as metformin. It also significantly improves cholesterol and may support gut health.
Coenzyme Q10
ModerateCoQ10 is a naturally occurring compound essential for energy production in every cell. It is a crucial component of the electron transport chain in mitochondria and is especially important for high-energy organs like the heart. Statin drugs deplete CoQ10, making supplementation particularly relevant for statin users.
Omega-3 Fatty Acids
StrongOmega-3 fatty acids are essential polyunsaturated fats that the body cannot produce. EPA and DHA, found primarily in fatty fish and algae, are the most biologically active forms. They are critical for brain structure, cardiovascular health, and controlling inflammation.