How to Have More Energy For Sex (and Everything Else)

You're fantasizing about catapulting into the couch when your mentor invites you to an after-work drink-and-debrief session. Perk up with a non-alcoholic cocktail of sparkling water and citrus. You're more likely to be dehydrated by evening, and even just a 1 percent decrease from optimal levels can make you cranky, unfocused and fatigued, found a small but important study in The Journal of Nutrition. Adding a slice of lemon may sharpen your banter: A study at the U.K.'s Northumbria University found that this scent can boost mood and improve cognitive performance.