Natural Health - Peak Performance - Longevity - Adventure
1Vigor logo

Sunrise in Canyonlands Utah courtesy of Ernesto Grossmann
Ralph Teller

Vitamin D Deficiency associated with Cognitive Decline

Ralph Teller, Ironman Triathlete

It is important to get some exercise outdoors in the sun every day

Two recent scientific studies have found that Vitamin D impacts brain health. Specifically, Vitamin D deficiency is associated with a higher risk for decline in cognitive function, including memory decline.

These studies found that Vitamin D deficiency carries a 122% increased risk of impaired cognitive function.

All animals, including humans, rely on the sun to as their primary source of Vitamin D. Humans get about 90% if their Vitamin D from the sun. Vitamin D synthesis in humans is a remarkable process where cells in our body capture photons from the sun's rays to create Vitamin D. In effect, our body captures the raw energy from the sun to create Vitamin D. See Skin Vitamin D Synthesis from the Sun

Obtaining your Vitamin D from the sun is free. The drug companies would prefer you to buy Vitamin D pills or supplements to increase their corporate profits, even though numerous studies have concluded most supplements (i) may not be effective, (ii) are not readily absorbed by the body, (iii) can be toxic and (iv) can be costly.

As Vitamin D has also been found to help (i) maintain bone health, (ii) promote muscle development and muscle strength, (iii) play a role in cardiovascular health and metabolic health, (iv )build immune system strength and cancer prevention, and (v) promote mental health, it is important to get some exercise outdoors in the sun!

"Low vitamin D levels likely affect cognition through both neurodegenerative and vascular mechanisms, according to the research authors. The authors also noted that Vitamin D receptors are expressed in areas of the brain involved in memory. Vitamin D receptors are found in cells and serve the function of promoting biological actions of Vitamin D at a cellular level.

Both studies was published in Neurology. See Vitamin D and the risk of dementia and Alzheimer disease and Vitamin D deficiency predicts cognitive decline in older men and women

David J. Llewellyn, PhD, from the University of Exeter Medical School in the United Kingdom was the lead author of the first study above. Elena D. Toffanello, MD, from University of Padova, Italy, was was the lead author of the second study.

More about Ralph Teller. See Ralph's 1Vigor Log Calendar.

<-- back to top

1Vigor Log Contest 1Vigor Log Contest Win Prizes! Prizes to the Male and Female who logs the most distance running, hiking, swimming, cycling, pushups on the 1Vigor Log . . . Read more

Swim Workout Plans
Triathlons, Open Water Racing, Pool Competition, English Channel Trent Grimsey, English Channel World Record Holder Build Speed and Endurance
by Trent Grimsey, English Channel Record Holder

Run Workout Plans
Ironman and Ironman 70.3 Triathlon,
5k-10k races
2008 ITU Duathlon World Championship in Rimini, Italy Build Speed and Endurance
Jan Raphael, Ironman Champion
Chris Harig, Duathlon National Champion

Books on 1VigorMudford England, by Ralph Teller Recommended reading on swimming, running, cycling, adventure, natural health, nutrition, brain power, nerve force, men's health, hiking, women's health . . . See Books!

Copyright 2008 - 2010. 1Vigor, Inc. All rights reserved.