People with asthma who are deficient in vitamin D are 25% more likely to suffer an acute attack, according to a study in the journal Allergy.
Three books explain how suffering can lead to painful, but necessary, change.
The Yin and Yang of Asian Diets
The Mediterranean Fountain of Youth
Trimming the Fat, Keeping the Soul
Native Americans Return to Dietary Roots
Latin Cuisine Spices It Up
Ancient Foods, Modern Health