FOCUS ENHANCER: This supplement

Taking 100 mg to 200 mg of R-lipoic acid daily chases away brain fog and other toxin-triggered symptoms for up to 82 percent of women studied, say University of California at Berkeley scientists. Credit the potent antioxidant’s ability to energize liver cells, helping them quickly break down and excrete waste. Try: Source Naturals R-Lipoic Acid 100 mg ($15 for 60 tablets, Vitacost.com).