NOURISH YOUR GUT
“A healthy microbiome is the very best protection against disease,” says Dr. Northrup. The reason? Beneficial gut bacteria produce 80 percent of the body’s immune cells and brain chemicals. But these bacteria are short-lived, so it’s crucial to replenish them. To do so, she advises eating fermented foods like yogurt, kefir and miso daily and supplementing with a probiotic. For a brand we like, try Renew Life Extra Care Ultimate Flora Probiotic ($20, target.com).