Ginkgo biloba extract enhances cognitive function primarily through its antioxidant properties, which reduce oxidative stress and protect neural cells. It also improves blood flow to the brain by dilating blood vessels and reducing blood viscosity.

Several studies have shown that Ginkgo biloba can improve memory and cognitive function in individuals with mild cognitive impairment and Alzheimer's disease. For example, a study in the "Journal of the American Medical Association" (2012) found that Ginkgo biloba extract improved cognitive function in older adults with mild cognitive impairment (Snitz et al., 2012).

Ginkgo biloba extract promotes blood circulation by increasing nitric oxide levels, which helps relax blood vessels and improve blood flow. It also inhibits platelet aggregation, reducing the risk of blood clots.

Research indicates that Ginkgo biloba extract can help with peripheral artery disease and intermittent claudication by improving pain-free walking distance and overall circulation. A study published in "Circulation" (2013) demonstrated significant improvements in patients with peripheral artery disease (Gardner et al., 2013). Another study in "Clinical Hemorheology and Microcirculation" (2011) found that it significantly improves microcirculation in patients with cerebrovascular insufficiency (Kudolo, 2011).

The extract contains high levels of flavonoids and terpenoids, which are potent antioxidants. These compounds neutralize free radicals, thereby reducing oxidative damage to cells and tissues.

Studies have demonstrated the strong antioxidant activity of Ginkgo biloba, which helps protect against cellular damage and reduce inflammation. This property is beneficial for overall health and may contribute to the prevention of various chronic diseases. For instance, a study in "Toxicology" (2010) highlighted Ginkgo's antioxidant effects in reducing oxidative stress (Smith et al., 2010).

Ginkgo biloba extract has been shown to protect neural cells from damage due to its anti-apoptotic and anti-inflammatory effects. It also enhances the uptake of glucose and oxygen by the brain, which is vital for energy metabolism and neuron function.

Research has found that Ginkgo biloba extract can protect neurons from amyloid-beta-induced toxicity, a key factor in the development of Alzheimer's disease. A study in the "Journal of Alzheimer's Disease" (2006) reported neuroprotective effects of Ginkgo against amyloid-beta toxicity (Ahlemeyer and Krieglstein, 2006). Additionally, animal studies have suggested that it may help mitigate the effects of neurodegenerative diseases (Wang et al., 2004).