Evidence supporting the use of: Green tea
For the health condition: Circulation (to the brain)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Green tea (Camellia sinensis) is sometimes used to support brain circulation and cognitive health. The justification for its use is primarily scientific, though the evidence is still emerging and not robust. Green tea is rich in polyphenolic compounds, notably epigallocatechin gallate (EGCG), which have antioxidant and vasodilatory properties. Several preclinical studies suggest that these compounds can improve endothelial function, promote vasodilation via increased nitric oxide production, and reduce oxidative stress, all of which could theoretically support cerebral blood flow. Some small-scale human studies and population-based research have linked regular green tea consumption with improved cognitive performance and a lower risk of cognitive decline, potentially due to effects on vascular function. For instance, a few randomized controlled trials have noted modest improvements in working memory and attention following acute green tea extract consumption, and neuroimaging studies suggest increased activity in brain areas associated with memory. However, direct evidence specifically demonstrating improved cerebral circulation in humans from green tea supplementation is limited, and most research does not isolate this mechanism from other potential benefits. In summary, while there is some scientific rationale and preliminary evidence suggesting green tea may support brain circulation and cognitive function, large-scale, well-controlled human trials are needed to confirm these effects and determine their clinical significance.

More about green tea
More about Circulation (to the brain)

Other health conditions supported by green tea

Acne
Addictions (coffee, caffeine)
Age Spots
Aging (prevention)
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Antibiotics (alternatives to)
Anxiety
Anxiety Disorders
Appetite (excessive)
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autoimmune Disorders
Belching
Benign Prostate Hyperplasia
Bites and Stings
Bleeding (internal)
Blood in Urine
Bloodshot Eyes
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
Cardiovascular Disease
Cartilage Damage
Cellulite
Cervical Dysplasia
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Cholesterol (low)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Cirrhosis of the Liver
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colic (children)
Colitis
Colon (atonic)
Colon (spastic)
Concentration (poor)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (lymphatic)
Congestion (sinus)
Conjunctivitis
Constipation (adults)
Contagious Diseases
Convalescence
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cramps (menstrual)
Crohn's Disease
Cuts
Cystic Breast Disease
Cystic Fibrosis
Cytomealovirus
Dandruff
Debility
Dementia
Denture Sores
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Diarrhea
Digestion (poor)
Down Syndrome
Endometriosis
Epstein Barr Virus
Eye Infections
Eye Problems
Eyes (red or itching)
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Glaucoma
Hemochromatosis
Irritable Bowel Syndrome
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Rosacea
Skin (oily)
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Abscesses
Body Odor
Cancer Treatment (reducing side effects)
Fatigue
Gastritis
Gingivitis
Hair (loss or thinning)
Headache (general)
Hypertension
Inflammation
Influenza
Liver Detoxification
Memory and Brain Function
Oral Surgery
Psoriasis
Stress
Triglycerides (high)
Ulcers
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Wrinkles