As we grow older, we may grow wiser, but we can also
experience age-related memory impairment (ARMI).
ARMI is relatively common1 and should not be confused
with Alzheimer’s or other dementia, while
ARMI is simply mild memory problems associated
with normal aging (e.g. “Where did I put my keys?”). Even so, the
memory loss and cognitive slowing associated with ARMI can
interfere with our daily routines.2 In fact, according to a national
survey, worries over retaining mental sharpness with age was the
number two health concern among consumers (second only to
worries about continuing with normal activities with age).3
So what can we do to help maintain mental sharpness with
aging? Aside from eating a healthy diet and getting regular exercise
(which is good advice for everybody in all age groups),
there are some very specific nutraceuticals (i.e. vitamins, herbs,
amino acids), which have been shown to be effective for just
this purpose. These include Bacopa monnieri leaf extract, Panax
ginseng root extract, Rhodiola rosea root extract, natural caffeine
and L-theanine, folic acid and vitamin B12.
Bacopa monnieri leaf extract
The leaves of the Bacopa monnieri plant have been used for
centuries in the traditional East Indian system of healthcare
(i.e. Ayurveda) for purposes of promoting “healthy longevity,
and strengthening life, brain, and mind.”4 While that is certainly
impressive, it is even more impressive that several modern,
human clinical studies have been conducted showing that
supplementation with Bacopa helped:
- Improve occasional, age-related absentmindedness.
- Promote a healthy memory.
- Improve some measures of delayed recall.
- Promote cognitive function.
Most of these studies5,6,7,8,9,10,11 found that daily supplementation
with 300 mg of Bacopa monnieri leaf extract (standardized
for 50 percent total bacosides), provided significant benefits by
week 12—although progressive benefits in Total Memory Score
were also seen during week four and eight as well.12
It should also be noted that these studies were conducted
in men and women who were at least 40 years old, and in most
cases more than 55 years old. That means that you’re more likely
to experience similar benefits if you’re middle-aged and older,
rather than if you’re in your 20s or 30s.
If you’re wondering how Bacopa works, research13 suggests
that it helps to maintain healthy levels of acetylcholine, a compound
your body makes that works in your brain to help facilitate
memory, learning ability and cognitive performance.
Panax ginseng root extract
Panax ginseng root, or ginseng for short, is a traditional Chinese
herb, which has been used for thousands of years for various aspects
of healthcare. It is also one of the most widely-researched
herbs in modern science with over 5,000 published studies.
Ginseng belongs to a category of herbs known as adaptogens.
Adaptogens are herbs that help stabilize physiological processes
and promote homeostasis (i.e. stable, healthy functioning
of the body), especially in the case of stress and fatigue. This
property was seen in two human clinical studies14,15 examining
the effects of ginseng on mental performance. The results demonstrated
that 200 mg of ginseng root extract daily:
- Improved speed of mental performance within 60 minutes.
- Enhance performance of mental arithmetic within 60 minutes.
- Reduce feelings of mental fatigue within 60 minutes.
- Quickly reduced feelings of mental fatigue during sustained mental activity.
- Quickly improved some measures of mental performance.
While many nutraceuticals may take weeks to work, these studies
found that ginseng root extract provided beneficial results in
as little as 60 minutes.
Rhodiola rosea root extract
Like ginseng, Rhodiola rosea root is an adaptogen. This plant has
been used for centuries in the traditional systems of healthcare
throughout Russia, Scandinavia, and other countries where it
was used to increase physical endurance, work productivity,
longevity, and to treat fatigue, mood and promote a healthy
nervous system.16 Currently, there are over 500 studies on
Rhodiola demonstrating the value of this plant. The reason for
its inclusion in Ageless Memory is that human clinical research17,18,19 shows that supplementation with Rhodiola:
- Improved capacity for mental work during stress.
- Supports healthy cognitive function during stress.
- Reduced fatigue during stress.
These benefits were seen when 370 mg of Rhodiola root extract
was used daily, and when it was standardized for 3 percent
salidroside and 1 percent rosavins—key compounds in
Rhodiola. This standardization is particularly important since
most Rhodiola extracts have the opposite standardization:
1 percent salidroside and 3 percent rosavins. Consequently,
products with this opposite standardization are not providing
the correct balance of Rhodiola compounds used in these
cited studies.
Natural Caffeine and L-Theanine
Black tea leaf extract provides natural caffeine as well as
the amino acid L-theanine. This is an important distinction
because not all sources of caffeine are natural, and not all
sources provide L-theanine as well. Consider that if you buy
one of those popular energy shots that are supposed to last a
few hours, they contain caffeine anhydrous. That’s a synthetic
form of caffeine. And while coffee certainly contains natural
caffeine, we all know about the jittery effect on your nerves
if you get too much—and some of the freshly brewed coffee
you get from popular coffee houses can contain hundreds of
milligrams of caffeine. Tea, on the other hand, also provides
L-theanine, which has a calming effect. That’s likely the
reason why drinking tea isn’t typically associated with caffeine jitters like coffee—it contains L-theanine, which
helps sooth over-stimulated nerves. Now to be clear, the
amount of caffeine used in research with L-theanine is only
50 mg—that’s the amount of caffeine you’d typically find
in one-half cup of moderately brewed coffee. Furthermore,
100 mg of L-theanine was used alongside the caffeine.
When this combination was used together, human clinical
research20,21,22,23,24,25 has shown that supplementation:
- Helped maintain focus.
- Helped with mental flexibility, the ability to shift attention from one task to another and efficiently adapt to different situations.
- Helped improve focus on the information while filtering out other stimuli.
- Helped improve focus during cognitively demanding tasks.
- Helped improve speed and accuracy of cognitive performance.
- Helped improve mental alertness.
Folic Acid and Vitamin B12
Folic acid and vitamin B12 are both critical B vitamins that perform
a variety of functions in the human body. Among those
functions are the roles they play in cognitive performance. For
example, in one study26 older adults were supplemented with
400 mcg of folic acid and 100 mcg of vitamin B12 daily. The
results showed that this combination:
- Supported healthy cognitive function in older adults.
- Promoted healthy memory performance in older adults.
Furthermore, vitamin B12 deficiency can result in memory loss,
and supplementation can help prevent it.27,28 Since vitamin B12
deficiency is estimated to affect 10 –15 percent of individuals
over the age of 60,29 supplementation is certainly worthwhile.
What to Expect When Taking Ageless Memory
It should be noted that the aforementioned nutraceuticals tend
to provide their effects at different times, so even if you use all
of them your results will be progressive rather than instantaneous.
Essentially, here’s how it will likely work (although everyone
is different and results and timing may differ for you as
well):
Endnotes:
- Hanninen T, Koivisto K, Reinikainen KJ, Helkala EL, Soininen H, Mykkänen L, Laakso M, Riekkinen PJ. Prevalence of ageing-associated cognitive decline in an elderly population. Age Ageing. 1996 May;25(3):201–5.
- Hedden T, Gabrieli JDE. Insights into the ageing mind: a view from cognitive neuroscience. Nat Rev Neurosci. 2004;5:87–96.
- Sloan AE, Hut CA. Reading the Compass: Up-and-Coming Market Trends. Nutraceuticals World. October 1, 2013. Retrieved November 9, 2015 from http://www.nutraceuticalsworld.com/issues/2013-10/view_features/reading-the-compass-up-and-coming-market-trends/.
- Engels G, Brinckmann J. Bacopa. HerbalGram. 2011;91:1–4.
- Morgan A, Stevens J. Does Bacopa monnieri Improve Memory Performance in Older Persons? Results of a Randomized, Placebo-Controlled, Double-Blind Trial. J Altern Complem Med. 2010; 16(7): 753–9.
- Calabrese C, Gregory WL, Leo M, Kraemer D, Bone K, Oken B. Effects of a Standardized Bacopa monnieri Extract on Cognitive Performance, Anxiety, and Depression in the Elderly: A Randomized, Double-Blind, Placebo-Controlled Trial. J Altern Complem Med. 2008;14(6):707–13.
- Roodenrys S, Booth D, Bulzomi S, Phipps A, Micallef C, Smoker J. Chronic effects of Brahmi (Bacopa monnieri) on human memory. Neuropsychopharmacology. 2002 Aug;27(2):279–81.
- Stough C, Lloyd J, Clarke J, Downey LA, Hutchison CW, Rodgers T, Nathan PJ. The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. Psychopharmacology (Berl). 2001 Aug;156(4):481–4.
- Stough C, Downey LA, Lloyd J, Silber B, Redman S, Hutchison C, Wesnes K, Nathan PJ. Examining the nootropic effects of a special extract of Bacopa monniera on human cognitive functioning: 90 day double-blind placebo-controlled randomized trial. Phytother Res. 2008 Dec;22(12):1629-34.
- Raghav S, Singh H, Dalal PK, Srivastava JS, Asthana OP. Randomized controlled trial of standardized Bacopa monniera extract in age-associated memory impairment. Indian J Psychiatry. 2006 Oct-Dec; 48(4): 238–42.
- Pase MP, Kean J, Sarris J, Neale C, Scholey AB, Stough C. The cognitive-enhancing effects of Bacopa monnieri: a systematic review of randomized, controlled human clinical trials. J Altern Complement Med. 2012 Jul;18(7):647–52.
- Raghav S, Singh H, Dalal PK, Srivastava JS, Asthana OP. Randomized controlled trial of standardized Bacopa monniera extract in age-associated memory impairment. Indian J Psychiatry. 2006 Oct-Dec; 48(4): 238–242.
- Stough C, Lloyd J, Clarke J, Downey LA, Hutchison CW, Rodgers T, Nathan PJ. The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. Psychopharmacology (Berl). 2001 Aug;156(4):481–4.
- Reay JL, Kennedy DO, Scholey AB. Single doses of Panax ginseng (G115) reduce blood glucose levels and improve cognitive performance during sustained mental activity. J Psychopharmacol. 2005 Jul;19(4):357–65.
- Reay JL, Kennedy DO, Scholey AB. Effects of Panax ginseng, consumed with and without glucose, on blood glucose levels and cognitive performance during sustained ‘mentally demanding’ tasks. J Psychopharmacol. 2006 Nov;20(6):771–81.
- Brown RP, Gerbarg PL, Ramazanov Z. Rhodiola rosea: A Phytomedicinal Overview. HerbalGram 2002; 56:40–52.
- Darbinyan V, Kteyan A, Panossian A, Gabrielian E, Wikman G, Wagner H. Rhodiola rosea in stress induced fatigue—a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine. 2000 Oct;7(5):365–71.
- Spasov AA, Wikman GK, Mandrikov VB, Mironova IA, Neumoin VV. A double-blind, placebo-controlled pilot study of the stimulating and adaptogenic effect of Rhodiola rosea SHR-5 extract on the fatigue of students caused by stress during an examination period with a repeated low-dose regimen. Phytomedicine. 2000 Apr;7(2):85–9.
- Shevtsov VA, Zholus BI, Shervarly VI, Vol’skij VB, Korovin YP, Khristich MP, Roslyakova NA, Wikman G. A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work. Phytomedicine. 2003 Mar;10(2–3):95–105.
- Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. L-theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Appetite. 2010 Apr;54(2):406–9.
- Kelly SP, Gomez-Ramirez M, Montesi JL, Foxe JJ. L-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance. J Nutr. 2008 Aug;138(8):1572S–1577S.
- Foxe JJ, Morie KP, Laud PJ, Rowson MJ, de Bruin EA, Kelly SP. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task. Neuropharmacology. 2012 Jun;62(7):2320–7.
- Owen GN, Parnell H, De Bruin EA, Rycroft JA. The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutr Neurosci. 2008 Aug;11(4):193–8. 24. Giesbrecht T, Rycroft JA, Rowson MJ, De Bruin EA. The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutr Neurosci. 2010 Dec;13(6):283–90.
- De Bruin EA, Rowson MJ, Van Buren L, Rycroft JA, Owen GN. Black tea improves attention and self-reported alertness. Appetite. 2011 Apr;56(2):235–40.
- Walker JG, Batterham PJ, Mackinnon AJ, Jorm AF, Hickie I, Fenech M, Kljakovic M, Crisp D, Christensen H. Oral folic acid and vitamin B-12 supplementation to prevent cognitive decline in community-dwelling older adults with depressive symptoms—the Beyond Ageing Project: a randomized controlled trial. Am J Clin Nutr. 2012;95:194–203.
- Food and Nutrition Board, Institute of Medicine. Vitamin B12. Dietary reference intakes for thiamin, riboflavin, niacin, vitamin B6, vitamin B12, pantothenic acid, biotin, and choline. Washington, D.C.: National Academy Press; 1998:306–56.
- Healton EB, Savage DG, Brust JC, Garrett TJ, Lindenbaum J. Neurologic aspects of cobalamin deficiency. Medicine (Baltimore). 1991;70(4): 229–45. [ABSTRACT ONLY]
- Baik HW, Russell RM. Vitamin B12 deficiency in the elderly. Annu Rev Nutr. 1999;19:357–77. [ABSTRACT ONLY]