If you're on your third cup of coffee already today, there may be a simpler way to perk up.

Just thinking about your significant other can boost your mood and energy, according to a new study from the University of Western Ontario in Canada. 

Researchers found that daydreaming about your love triggers a chemical reaction that increases your levels of cortisol and blood sugar. This results in a jolt of energy. 

The rush of being in love does the same thing to our bodies, explains Stanton. The only difference is there are no negative feelings associated with this stress. You get the boost of energy without the worry, panic, or anxiety. "Essentially, love 'stresses' us out in a good way," she says.

Want to give the all-natural upper a shot? Close your eyes and think about your loved one. Visualize her face and body in as much detail as you can. Reflect on your favorite moments with him and think about how you feel when you're with him. After a few minutes, open your eyes. How do you feel? Hopefully a little more energetic. Doesn't get much simpler than that.