Your menstrual cycle is more than the days when you have your period. Across the month, hormones change, the body prepares for ovulation, energy can fluctuate and physical or emotional symptoms may appear.
Understanding the menstrual cycle phases can help you recognise these patterns without becoming obsessed with them.
At Palasiet, we believe body awareness should make health feel clearer, not more complicated. Knowing your cycle is not about following a perfect 28-day calendar. It is about learning what feels normal for you, noticing meaningful changes and knowing when your body may be asking for more attention.

What are the four menstrual cycle phases?
The menstrual cycle is usually described in four phases:
- Menstrual phase
- Follicular phase
- Ovulation
- Luteal phase
These phases are guided mainly by changes in oestrogen, progesterone, follicle-stimulating hormone and luteinising hormone.
A 28-day cycle is often used as an example, but it should not be treated as a rule. Healthy menstrual cycles vary, and the length of each phase can be different from one person to another and even from one month to the next.
Menstrual phase: the beginning of a new cycle
The first day of menstrual bleeding is considered day one of the cycle.
When pregnancy has not occurred, levels of oestrogen and progesterone fall and the lining of the uterus is shed.
Some women feel relatively well during their period. Others experience cramps, fatigue, digestive changes, headaches or a greater need for rest.
There is no correct way to feel.
If you have energy and feel comfortable exercising, menstruation does not mean you need to stop. If pain or tiredness is significant, choosing gentler movement or allowing more recovery may be a better response.
The important question is not what you are supposed to do during your period. It is what your body is telling you.
Follicular phase: preparing for ovulation
The follicular phase begins on the first day of menstruation and continues until ovulation.
During this phase, follicles develop in the ovaries and oestrogen gradually rises.
Some people notice an increase in energy or motivation as their period ends. Others experience very little difference.
Online advice often presents this phase as a time when every woman should train harder, socialise more or be especially productive. That is an oversimplification.
Hormones influence the body, but they do not determine your personality or your daily performance.
Ovulation: not always day 14
Ovulation occurs when an egg is released from the ovary.
It is often associated with day 14 because many diagrams are based on a 28-day cycle. In reality, ovulation does not happen on the same day for everyone.
It generally occurs around 12 to 16 days before the next period.
Some women notice changes in cervical mucus, a slight increase in sexual desire or mild pelvic discomfort. Others notice no obvious symptoms.
Tracking can help you understand your usual rhythm, but an app prediction is still an estimate. This is particularly important if you are monitoring ovulation for fertility reasons.
Luteal phase: the time before your next period
The luteal phase starts after ovulation.
Progesterone rises as the uterus prepares for a possible pregnancy. If pregnancy does not occur, progesterone and oestrogen fall and a new menstrual cycle begins.
This is when premenstrual symptoms may appear.
You may notice bloating, breast tenderness, appetite changes, irritability, headaches, lower energy or changes in sleep. These symptoms vary widely and not everyone experiences them.
Rather than automatically blaming hormones, look at the broader picture too.
Stress, poor sleep, intense exercise, nutrition and emotional wellbeing can all influence how you feel.
Our article on women’s hormonal health and chronic stress explores this relationship in more depth.
What can your cycle tell you about your health?
One of the most useful aspects of menstrual tracking is learning your own baseline.
The goal is not to create the perfect cycle. It is to recognise your pattern.
It can be useful to observe:
- when your period starts
- how long bleeding lasts
- changes in flow
- pain
- sleep
- energy
- mood
- appetite
You do not need to record every sensation.
A simple question is often more useful:
Is this normal for me, or is something changing?
Persistent changes deserve attention, especially when periods become very painful, unusually heavy or begin interfering with everyday life.
Bleeding between periods, significant changes in cycle regularity or symptoms that affect your quality of life should also be discussed with a healthcare professional.
Menstrual health should never be reduced to simply tolerating discomfort.
What is cycle syncing?
Cycle syncing means adapting habits such as exercise, food, rest or workload according to the different phases of the menstrual cycle.
The concept has become popular because it encourages women to pay more attention to their bodies. That can be valuable.
The problem comes when cycle syncing becomes a strict formula.
You may see advice telling women to perform high-intensity exercise during ovulation, rest during menstruation or eat specific foods according to each phase.
Current research does not support such rigid recommendations for everyone.
Individual responses to hormonal changes are too varied.
A more useful approach is to use the cycle as context rather than as an instruction manual.
If you regularly feel more tired before your period, planning more recovery may help. If you feel strong during menstruation, there is no reason to reduce exercise purely because of the phase you are in.
This is the difference between following your body and following a chart.
Does the cycle syncing diet work?
A cycle syncing diet usually recommends different foods for each menstrual phase.
While appetite, energy intake and some metabolic processes can change throughout the cycle, there is not enough evidence to support one universal diet divided into four fixed phases.
Nutrition should respond to your needs, not to a calendar.
A stronger foundation is to focus on:
- regular, balanced meals
- sufficient protein
- fibre-rich foods
- fruit and vegetables
- adequate hydration
- healthy sources of fat
- enough energy to support daily activity
Iron is also particularly relevant for women who experience heavy menstrual bleeding.
You may notice that your appetite increases before your period. That does not mean something is wrong or that you lack willpower.
Instead of fighting these signals, ask whether your meals are satisfying enough and whether your body is receiving the energy it needs.
The relationship between food, timing and our internal rhythms is something we also explore in our guide to chrononutrition.
Should you change your exercise during your cycle?
There is no universal workout plan for each menstrual phase.
Some women notice changes in strength, motivation or recovery during the month. Others perform consistently throughout their cycle.
The most sensible approach is flexible.
If you feel well, train normally.
If cramps, fatigue or poor sleep affect you, adjust intensity, duration or recovery.
Movement should support your health. It should not become another set of rules you need to follow perfectly.
Sleep, stress and menstrual wellbeing
Sleep and stress are often overlooked when people talk about menstrual health.
They matter.
Poor sleep can affect energy, appetite, mood and recovery. Chronic stress can also influence how the body feels and how symptoms are perceived.
This is why looking at the menstrual cycle in isolation rarely gives the whole answer.
If you are experiencing persistent tiredness or disrupted sleep, it may be useful to look beyond hormones alone. Our guide on how to improve sleep quality offers practical ways to support better rest.
Your cycle will change throughout life
Menstrual patterns do not remain identical forever.
Pregnancy, breastfeeding, hormonal contraception, stress, changes in health and the transition towards menopause can all affect your cycle.
During perimenopause, periods may become more irregular and symptoms may change.
For some women, this stage creates a feeling that the body has become unfamiliar.
At Palasiet, our Vital Menopause programme takes a personalised approach to this transition, combining medical assessment, nutrition, movement, emotional wellbeing and thalassotherapy.
The aim is not to fight the body.
It is to understand what is changing and support health through that change.
A more complete way to care for your health
The menstrual cycle is connected to the rest of your wellbeing.
Sleep matters. Stress matters. Nutrition matters. Movement matters. Medical history matters.
This is why Palasiet works from an integrative perspective.
Our approach to integrative medicine looks at the person as a whole rather than treating each symptom in isolation.
Thalassotherapy can also form part of that wider approach through relaxation, recovery, movement and time devoted to physical and emotional care.
We would not describe seawater as a way to regulate hormones or control the menstrual cycle.
Its value lies elsewhere.
Sometimes health begins with giving the body better conditions in which to recover and enough space to notice what it is telling us.
How to start understanding your menstrual cycle
Begin simply.
Track when your period starts and notice anything that repeatedly changes during the month.
You might see patterns in your sleep, appetite, energy or mood. You might notice almost no difference between phases.
Both are useful observations.
The aim is not to become more controlling of your body.
It is to know it well enough to recognise when something feels right, when an adjustment may help and when a change deserves professional attention.
Your menstrual cycle does not need to be perfect.
It needs to be understood in the context of you.
Frequently asked questions
What are the four phases of the menstrual cycle?
They are the menstrual phase, follicular phase, ovulation and luteal phase. Each is associated with different hormonal changes, although symptoms and experiences vary between individuals.
How do I know which menstrual cycle phase I am in?
Tracking the first day of your period provides a useful starting point. Changes in cervical mucus and other symptoms can offer additional clues, but calendar predictions are estimates rather than exact measurements.
Does cycle syncing really work?
Paying attention to recurring patterns can help you adapt exercise, rest or nutrition when useful. However, there is not enough evidence to support strict phase-based lifestyle plans for every woman.
What is a cycle syncing diet?
It is an eating approach that recommends different foods during each menstrual phase. Current evidence does not support a universal four-phase diet. Balanced nutrition adapted to individual needs is a more reliable approach.
When should I speak to a doctor about my period?
Seek medical advice if your normal pattern changes significantly, your periods become very painful or heavy, you bleed between periods or your symptoms begin to interfere with daily life.