https://pubmed.ncbi.nlm.nih.gov/12895683
http://www.pubfacts.com/detail/18350281/An-extract-of-Salvia-sage-with-anticholinesterase-properties-improves-memory-and-attention-in-health
https://www.ncbi.nlm.nih.gov/pubmed/12895685
http://www.bmj.com/content/337/bmj.a2313
http://www.sciencedirect.com/science/article/pii/S1590865807000618
https://www.ncbi.nlm.nih.gov/pubmed/30411507
https://www.ncbi.nlm.nih.gov/pubmed/18227495
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855614
https://pubmed.ncbi.nlm.nih.gov/28864169
https://www.healthline.com/health/atherosclerosis
https://pubmed.ncbi.nlm.nih.gov/1356551
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1600–0773.1995.tb00111.x
https://www.healthline.com/health/l-theanine
http://apjcn.nhri.org.tw/server/APJCN/17%20Suppl%201/167.pdf
https://pubmed.ncbi.nlm.nih.gov/19445822
https://pubmed.ncbi.nlm.nih.gov/19437116
https://academic.oup.com/aje/article/167/1/71/18545
https://pubmed.ncbi.nlm.nih.gov/28454102
http://archinte.jamanetwork.com/article.aspx?articleid=773949
https://pubmed.ncbi.nlm.nih.gov/16968850
https://www.ncbi.nlm.nih.gov/pubmed/22184430
https://www.ncbi.nlm.nih.gov/pubmed/16618952
https://www.sciencedirect.com/science/article/abs/pii/S0021915099002397
https://www.sciencedirect.com/science/article/abs/pii/S0940299397800966
https://academic.oup.com/jn/article/138/8/1548S/4750815
https://www.ncbi.nlm.nih.gov/pubmed/23346663
https://www.healthline.com/nutrition/10-benefits-of-green-tea-extract
https://www.healthline.com/health/skin/acne
https://www.healthline.com/health/atopic-dermatitis/what-is-atopic-dermatitis
https://www.healthline.com/health/healthy-sex/how-long-do-genital-warts-last
https://www.healthline.com/health/how-to-get-rid-of-keloids
https://www.healthline.com/health/skin/rosacea
https://gezonderleven.com/wat-gebeurt-er-met-je-lichaam-als-je-dagelijks-groene-thee-drinkt
https://www.healthline.com/nutrition/probiotics-and-prebiotics
https://www.ncbi.nlm.nih.gov/pubmed/18590586
https://pubmed.ncbi.nlm.nih.gov/21091293
https://www.ncbi.nlm.nih.gov/pubmed/28105758
https://pubmed.ncbi.nlm.nih.gov/25737610
https://www.ncbi.nlm.nih.gov/pubmed/19639727
https://www.ncbi.nlm.nih.gov/pubmed/10094584
https://www.ncbi.nlm.nih.gov/pubmed/8201901
https://www.ncbi.nlm.nih.gov/pubmed/15657469
http://www.sciencedirect.com/science/article/pii/S0939475309002798
https://www.ncbi.nlm.nih.gov/pubmed/16772246