Is regular exercise a friend or foe of the aging immune system? A systematic review.
Haaland DA, Sabljic TF, Baribeau DA, Mukovozov IM, Hart LE.
Clin J Sport Med. 2008 Nov;18(6):539-48. Review.
PMID: 19001887
doi: 10.1097/JSM.0b013e3181865eec
A large number of new vitamin D studies have appeared in the scientific literature since I wrote my plea to the federal government. These studies don't just confirm what we knew 16 months ago-they show that optimizing vitamin D intake will save even more lives than what we projected.
Vitamin D More Effective Than Previously Known
For instance, a study published in June 2008 showed that men with low vitamin D levels suffer 2.42 times more heart attacks. Now look what this means in actual body counts.