Everything About Your Cycle Health and all the Factors That Shape Your Menstrual Cycle

In this section, we take a look at various aspects of menstrual cycle health and how different factors such as exercise, nutrition, and external influences can affect the body’s natural rhythm.

Learn how your cycle influences your athletic performance and why you're more effective at training during the first half of your cycle. Get tips on how to align your workouts with your menstrual cycle for optimal results!

Sport and Cycle

Does the birth control pill affect women's fertility? This article explores how the pill may influence egg reserve and why it's important to be aware of your biological clock.

Egg Reserve

Iron deficiency is widespread and especially common among women. Learn how to recognize the signs of iron deficiency, what causes it, and how you can prevent or treat it effectively through targeted measures.

Iron Deficiency

Cycle Health – Everything That Shapes Your Menstrual Cycle

Your menstrual cycle doesn't exist in a vacuum. It responds to everything happening in your life – your workouts and nutrition, your stress levels and sleep, external factors and hormonal influences. Cycle health means understanding these connections and reading your cycle for what it truly is: a vital sign of your overall health.

In this section you'll find evidence-based, easy-to-understand articles on the most important factors that can affect your cycle – thoroughly researched, without fearmongering.

Exercise and Your Cycle – Training Smarter, Not Harder

Your body responds differently to physical exertion depending on where you are in your cycle. During the follicular phase, strength and endurance are on the rise – ideal for high-intensity workouts. Around ovulation, your performance capacity is typically at its peak. In the luteal phase, especially in the days leading up to your period, your body calls for more recovery. Understanding this rhythm means you're no longer working against your body – you're working with it.

Iron Deficiency and Your Cycle – An Underestimated Connection

Iron deficiency affects a disproportionate number of women – largely due to blood loss during menstruation. Fatigue, brain fog, feeling cold and reduced performance can all be signs of a deficiency that often goes undetected for years. Tracking your cycle with Daysy regularly can help you spot patterns in your temperature curve and overall wellbeing that may point to an underlying deficiency worth discussing with your healthcare provider.

Morning-After Pill and Your Cycle – What's Actually Happening in Your Body

The morning-after pill is a hormonal intervention that deliberately and measurably impacts your cycle. If you use Daysy and take emergency contraception, you may notice changes in your temperature readings and cycle pattern in the days that follow. This article breaks down exactly what happens biologically – and how Daysy responds in this situation. Clear information, no confusion.

External Factors That Can Affect Your Cycle

Stress, travel, poor sleep, changes in climate and even light exposure can all shift or disrupt your cycle. Tracking daily with Daysy allows you to recognize these influences over time, put them in context and understand them – rather than interpreting every irregularity as a problem.

Cycle health isn't a niche topic. It's a core part of women's health – and this section gives you the knowledge to take it seriously.

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