Your Inner Seasons

From Learn about your cycle. General wellness information, not medical advice. Sources.

How your cycle works covers the science. The Inner Seasons are how we translate it into something easier to live with, and each one lines up with part of that clinical cycle.

Your cycle isn't a switch that flips on when your period starts and off when it ends. It turns like the year, moving through seasons. We call them your Inner Seasons, and knowing roughly where you are can help the rest of your body make more sense.

The physical changes below are real and well understood. The popular rules built on top of them, often called cycle syncing, like eating a certain way in one phase or training hard in another, mostly aren't backed by good evidence. Where differences between phases show up at all, they tend to be small and vary a lot between people. So treat the seasons as a way to notice your own patterns rather than a rulebook you owe anything to. Your own logged history will always tell you more than a universal chart.

Winter, your period (roughly days 1 to 5)

This is your period, the start of the follicular phase. Estrogen and progesterone, the two main hormones of your cycle, are at their lowest, and the lining you built last month sheds. That's the bleeding. If cramps show up, they're your uterus contracting, and they often peak in the first day or two. Low energy is common now, though that may owe as much to blood loss and broken sleep as to the hormones themselves. There's more on how a period works in What happens during your period.

Resting is a fair choice, not a failure. If you do feel like moving, easy movement can ease cramps for some people. Iron matters this season, since bleeding is the main reason menstruators run low on it.

Spring, after your period (roughly days 6 to 13)

This is the rest of the follicular phase. Estrogen climbs back up. Many people feel steadier here, though that's often just the absence of the rougher premenstrual days rather than a special lift. Energy tends to feel stable.

If you feel like leaning into something more active, this can be a good window for it. If you don't notice much difference, that's completely normal too.

Summer, around mid-cycle (roughly days 13 to 15)

Estrogen peaks, and ovulation happens: an egg is released. Some people notice more drive or vitality. It's a short window, and harder to pin to an exact day than the internet suggests. Strictly speaking, ovulation is an event, not a phase, and Summer is our name for the few days around it.

There's nothing you need to avoid. One small, evidence-based note is that ligaments run a touch looser around now, so the usual good habits for sport, like a proper warm-up and decent landing mechanics, are worth keeping up if you play something with a lot of cutting or jumping.

Autumn, after ovulation to your next period (roughly days 15 to 28)

This is the luteal phase. Estrogen and progesterone rise to a peak, then fall away near the end. That fall at the very end, not the high part, is what drives most premenstrual feelings. You might notice appetite or cravings pick up, sleep shift, or mood dip in the last few days. It's real, and it varies a lot from person to person.

Cravings are common in this stretch. Regular meals through the day can help keep them steadier, and if they ever feel out of your control, that's worth talking to a clinician about. Some people find calcium-rich foods help with premenstrual symptoms. That's the strongest bit of evidence in this area, though it's still modest.

Eating across your cycle

You'll find a lot of confident advice about eating for each phase, and most of it doesn't hold up. Seed cycling, phase-specific "hormone-balancing" foods, strict cycle diets: the evidence for those is thin to none. Eat foods because they nourish you, not to time your hormones. That said, a few ideas do have some support, and none of them is a meal plan.

Iron is worth keeping in mind around your period because monthly bleeding is the main reason people who menstruate run low on it. Iron-rich foods like shellfish, red meat, lentils, tofu, and leafy greens, paired with a little vitamin C from citrus or peppers, help you top back up, and it's worth carrying that on into the week or two afterward while your body restocks.

In the stretch before your period, a handful of nutrients have modest evidence for easing premenstrual symptoms. Calcium has the strongest, from foods like dairy, fortified plant milk, leafy greens, and sardines. Magnesium (especially alongside vitamin B6) and the omega-3s in oily fish may help some people with mood or period pain, though they work by building up over time rather than in the moment. And meals that put protein, whole grains, and fiber together help steady your energy and take the edge off cravings.

A couple of "it depends" notes. Some people find alcohol makes premenstrual symptoms feel worse, so it's worth watching your own pattern. And despite what you may have read, there's no good reason to cut caffeine or salt as a rule: if they bother you, ease off, and if they don't, don't worry about it.

This is where your own log beats any rule. In Moonstrate, you can add something you're trying on any day, like skipping a drink before your period or switching to decaf, and rate how it went, from "Much worse" to "Helped a lot." The item comes back each time that season does, and after a few ratings the Insights tab shows whether it seems to work for you in that season or hasn't. The answer comes only from your own data.

None of this is about eating more or less. Eating regularly, through every season, is part of taking care of yourself. And if food ever feels hard to manage, in either direction, that's worth talking to a clinician about.

Next: Understanding your cycle