Every 7 years I take a test to maintain my medical board certification. This test is prepared by the American Board of Family Medicine. The last time I took the test I clearly remember a multiple choice question regarding osteoarthritis. The choice...
Catuaba: Coitus Catalyst ;Catuaba (Erythroxylum catuaba) is a medium-sized tree fo
Arginine is a versatile amino acid in animal cells, serving as a precursor for the making not only of proteins but also of ...
Ashwagandha is a shrub cultivated in India and North America whose roots have been used for thousands of years b
Androstenedione and its close cousins androstenediol, norandrostenedione, and others, are natural steroid hormones found in the body and available over the counter. There are several other steroid hormones available without a prescription, including...
Lipoic Acid: A Powerful and Unique Antioxidant ;Lipoic acid, also known as alpha lipoic acid, is a power
A study of more than 6,000 persons ages 65 and older showed that a high intake of vitamin E from foods and/or dietary supplements was associated with reduced memory loss and other cognitive decline. This study was important because most of the...
Huperzine A is an extract from a club moss, whose action has been attributed to its ability to strongly inhibit the enzyme that breaks down acetylcholine in the synaptic cleft. In the column, "Huperzine A" Ray Sahelian, M.D. reports that this...
Alzheimer's Disease is a progressive deterioration in mental functioning with onset most commonly starting in one's 80s, although it has been known to start as early as age 30. While scientists have not fully determined the actual causes of...
The combination ginkgo biloba and ginseng extracts can promote fast, accurate thinking, improve short and long-term memory retention, and reduce mental fatigue. While previous research has documented the effects of ginkgo biloba on memory in older...
Ray Sahelian MD