^ Akhondzadeh, S.; Noroozian, M.; Mohammadi, M.; Ohadinia, S.; Jamshidi, A. H.; Khani, M. (2003). "Salvia officinalis extract in the treatment of patients with mild to moderate Alzheimer's disease: A double blind, randomized and placebo-controlled trial". Journal of Clinical Pharmacy and Therapeutics. 28 (1): 53–9. doi:10.1046/j.1365-2710.2003.00463.x. PMID 12605619.
​Ginkgo Biloba has been used for thousands of years in herbal medicine. Probably first used by the Chinese, today it is used widely in both the United States and Europe. Ginkgo actually comes from the leaves of a the Ginkgo tree, while probably not an herb you would plant in your garden I still think it's a great herb to include in our list of herbs. Over the years Ginkgo Biloba has gained a reputation of being beneficial to the brain. According to the University of Maryland Medical Center the two main constituents found in Ginkgo are flavonoids and terpenoids, both are antioxidants. Flavonoids have been shown to aid in the protection of nerves, heart, and blood vessels. Terpenoids are probably where ginkgo gains it's reputation for being beneficial to the brain, terpenoids help improve blood flow to the brain by dilating blood vessels and prevents platelets from sticking to each other.

Thyme is a fragrant herb that makes a wonderful addition to your cooking, in part because it is rich in antioxidants. Thyme contains health-boosting flavonoids including apigenin, naringenin, luteolin, and thymonin, and has been shown to protect and increase the percentage of healthy fats found in cell membranes. As reported by the George Mateljan Foundation:12 "In particular, the amount of DHA (docosahexaenoic acid, an omega-3 fatty acid) in brain, kidney, and heart cell membranes was increased after dietary supplementation with thyme."

​Also known as pot marigold or poet's marigold, calendula is different than the common marigold that's usually seen in gardens. Unlike the common marigold calendula is edible and has very little scent. During medieval time in England the calendula herb was commonly used in stews, syrups, and breads. Calendula is also rather easy to start from seed and is able to adapt to many growing conditions making it an ideal herb to grow. The herb is found in many gardens all over the world for subarctic to tropic regions. Now let's take a look at the key medicinal uses that make calendula such a prized herb to have.
Eating a clove or two of fresh garlic a day may indeed keep the doctor away, in part because it has immune-boosting, antibacterial, antiviral, and anti-fungal effects. Many of garlic's therapeutic effects are derived from its sulfur-containing compounds, such as allicin, which are also what give it its characteristic smell. In general, garlic's benefits fall into four main categories: