Food, Fitness, and Cycle: Have you ever noticed that your mood, energy levels, and appetite seem to fluctuate throughout the month? You’re not imagining it—and you’re certainly not alone. These shifts are a normal part of the menstrual cycle, driven by natural hormonal fluctuations that affect how your body feels and moves from day to day. One week, you might crave chocolate; Others, you need extra rest. Both are your body’s way of asking for support. Because no two cycles (or bodies) are exactly alike, researchers have begun to examine in more detail how different phases of the menstrual cycle—and the hormonal changes that accompany them—can affect nutritional and exercise needs. While research in this area is still developing, the initial findings offer some interesting insights. Read on to find out what a “sync cycle” is and how setting your own cycle can help you better understand and support your body.