“Mild dehydration produces alterations in a number of important aspects of cognitive function, such as concentration, alertness, and short-term memory,” explains Rebecca Ditkoff, MPH, RD, CDN, and founder of Nutrition by RD. “I find that if I’m feeling sluggish or foggy-headed in the afternoon, a big glass of lemon water reenergizes my mind and helps me power through the rest of the day.” RELATED: Can Beet Juice Really Boost Your Physical Fitness? We Asked an RD RELATED: Why People Are Adding Mushrooms to Everything From Coffee to Smoothies
